/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 22:08:13,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 22:08:13,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 22:08:13,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 22:08:13,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 22:08:13,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 22:08:13,463 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 22:08:13,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 22:08:13,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 22:08:13,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 22:08:13,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 22:08:13,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 22:08:13,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 22:08:13,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 22:08:13,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 22:08:13,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 22:08:13,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 22:08:13,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 22:08:13,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 22:08:13,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 22:08:13,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 22:08:13,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 22:08:13,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 22:08:13,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 22:08:13,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 22:08:13,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 22:08:13,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 22:08:13,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 22:08:13,520 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 22:08:13,534 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 22:08:13,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 22:08:13,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 22:08:13,536 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 22:08:13,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 22:08:13,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 22:08:13,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 22:08:13,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 22:08:13,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 22:08:13,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 22:08:13,539 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 22:08:13,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 22:08:13,539 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 22:08:13,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 22:08:13,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 22:08:13,540 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 22:08:13,540 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 22:08:13,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 22:08:13,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 22:08:13,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 22:08:13,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 22:08:13,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 22:08:13,541 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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: Use separate solver for trace checks -> true [2020-08-22 22:08:13,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 22:08:13,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 22:08:13,898 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 22:08:13,900 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 22:08:13,900 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 22:08:13,901 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-08-22 22:08:13,971 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52f671895/1dae5422daf54033b2027390713348c5/FLAG4cf45fdba [2020-08-22 22:08:14,452 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 22:08:14,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-08-22 22:08:14,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52f671895/1dae5422daf54033b2027390713348c5/FLAG4cf45fdba [2020-08-22 22:08:14,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52f671895/1dae5422daf54033b2027390713348c5 [2020-08-22 22:08:14,773 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 22:08:14,775 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 22:08:14,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 22:08:14,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 22:08:14,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 22:08:14,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:08:14" (1/1) ... [2020-08-22 22:08:14,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b337bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:08:14, skipping insertion in model container [2020-08-22 22:08:14,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:08:14" (1/1) ... [2020-08-22 22:08:14,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 22:08:14,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 22:08:14,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:08:14,983 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 22:08:15,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:08:15,020 INFO L208 MainTranslator]: Completed translation [2020-08-22 22:08:15,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:08:15 WrapperNode [2020-08-22 22:08:15,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 22:08:15,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 22:08:15,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 22:08:15,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 22:08:15,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:08:15" (1/1) ... [2020-08-22 22:08:15,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:08:15" (1/1) ... [2020-08-22 22:08:15,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:08:15" (1/1) ... [2020-08-22 22:08:15,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:08:15" (1/1) ... [2020-08-22 22:08:15,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:08:15" (1/1) ... [2020-08-22 22:08:15,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:08:15" (1/1) ... [2020-08-22 22:08:15,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:08:15" (1/1) ... [2020-08-22 22:08:15,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 22:08:15,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 22:08:15,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 22:08:15,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 22:08:15,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:08:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 22:08:15,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 22:08:15,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 22:08:15,228 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-08-22 22:08:15,229 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-08-22 22:08:15,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 22:08:15,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 22:08:15,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 22:08:15,229 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-08-22 22:08:15,229 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-08-22 22:08:15,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 22:08:15,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 22:08:15,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 22:08:15,499 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 22:08:15,499 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 22:08:15,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:08:15 BoogieIcfgContainer [2020-08-22 22:08:15,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 22:08:15,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 22:08:15,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 22:08:15,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 22:08:15,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:08:14" (1/3) ... [2020-08-22 22:08:15,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbb4dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:08:15, skipping insertion in model container [2020-08-22 22:08:15,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:08:15" (2/3) ... [2020-08-22 22:08:15,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbb4dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:08:15, skipping insertion in model container [2020-08-22 22:08:15,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:08:15" (3/3) ... [2020-08-22 22:08:15,513 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2020-08-22 22:08:15,526 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 22:08:15,536 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 22:08:15,553 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 22:08:15,578 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 22:08:15,578 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 22:08:15,579 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 22:08:15,579 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 22:08:15,579 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 22:08:15,579 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 22:08:15,579 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 22:08:15,579 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 22:08:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-08-22 22:08:15,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-22 22:08:15,624 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:15,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:15,626 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:15,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:15,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-08-22 22:08:15,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:15,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [950309035] [2020-08-22 22:08:15,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:15,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:15,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:15,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 22:08:15,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [950309035] [2020-08-22 22:08:15,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:08:15,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 22:08:15,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844602007] [2020-08-22 22:08:15,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 22:08:15,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:15,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 22:08:15,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 22:08:15,872 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-08-22 22:08:16,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:16,004 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-08-22 22:08:16,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 22:08:16,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-08-22 22:08:16,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:16,017 INFO L225 Difference]: With dead ends: 58 [2020-08-22 22:08:16,018 INFO L226 Difference]: Without dead ends: 42 [2020-08-22 22:08:16,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 22:08:16,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-08-22 22:08:16,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-08-22 22:08:16,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-08-22 22:08:16,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-08-22 22:08:16,074 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-08-22 22:08:16,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:16,075 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-08-22 22:08:16,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 22:08:16,075 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-08-22 22:08:16,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-22 22:08:16,078 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:16,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:16,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 22:08:16,079 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:16,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:16,080 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-08-22 22:08:16,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:16,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350439768] [2020-08-22 22:08:16,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 22:08:16,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350439768] [2020-08-22 22:08:16,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:08:16,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 22:08:16,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905521492] [2020-08-22 22:08:16,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 22:08:16,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:16,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 22:08:16,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 22:08:16,171 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-08-22 22:08:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:16,247 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-08-22 22:08:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 22:08:16,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-08-22 22:08:16,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:16,250 INFO L225 Difference]: With dead ends: 50 [2020-08-22 22:08:16,251 INFO L226 Difference]: Without dead ends: 44 [2020-08-22 22:08:16,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 22:08:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-22 22:08:16,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-08-22 22:08:16,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-08-22 22:08:16,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-08-22 22:08:16,267 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-08-22 22:08:16,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:16,268 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-08-22 22:08:16,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 22:08:16,268 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-08-22 22:08:16,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-08-22 22:08:16,270 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:16,271 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 22:08:16,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 22:08:16,271 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:16,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:16,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-08-22 22:08:16,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:16,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537538314] [2020-08-22 22:08:16,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 22:08:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 22:08:16,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537538314] [2020-08-22 22:08:16,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:16,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:08:16,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346742619] [2020-08-22 22:08:16,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:08:16,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:16,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:08:16,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:08:16,442 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-08-22 22:08:16,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:16,641 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2020-08-22 22:08:16,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 22:08:16,643 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-08-22 22:08:16,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:16,644 INFO L225 Difference]: With dead ends: 82 [2020-08-22 22:08:16,644 INFO L226 Difference]: Without dead ends: 46 [2020-08-22 22:08:16,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:08:16,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-08-22 22:08:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-08-22 22:08:16,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-22 22:08:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2020-08-22 22:08:16,664 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 33 [2020-08-22 22:08:16,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:16,664 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2020-08-22 22:08:16,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:08:16,665 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2020-08-22 22:08:16,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-08-22 22:08:16,667 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:16,667 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 22:08:16,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 22:08:16,668 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:16,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:16,668 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 1 times [2020-08-22 22:08:16,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:16,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [21716734] [2020-08-22 22:08:16,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:16,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 22:08:16,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [21716734] [2020-08-22 22:08:16,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:16,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:08:16,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502536503] [2020-08-22 22:08:16,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:08:16,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:16,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:08:16,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:08:16,783 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 7 states. [2020-08-22 22:08:16,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:16,977 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2020-08-22 22:08:16,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 22:08:16,978 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-08-22 22:08:16,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:16,981 INFO L225 Difference]: With dead ends: 74 [2020-08-22 22:08:16,981 INFO L226 Difference]: Without dead ends: 68 [2020-08-22 22:08:16,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 22:08:16,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-22 22:08:16,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-08-22 22:08:16,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-22 22:08:17,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2020-08-22 22:08:17,000 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 34 [2020-08-22 22:08:17,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:17,001 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2020-08-22 22:08:17,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:08:17,001 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2020-08-22 22:08:17,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-08-22 22:08:17,004 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:17,004 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-08-22 22:08:17,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 22:08:17,005 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:17,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:17,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1875452576, now seen corresponding path program 1 times [2020-08-22 22:08:17,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:17,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52207177] [2020-08-22 22:08:17,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 22:08:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 22:08:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 22:08:17,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52207177] [2020-08-22 22:08:17,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:17,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 22:08:17,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964380779] [2020-08-22 22:08:17,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 22:08:17,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:17,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 22:08:17,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 22:08:17,179 INFO L87 Difference]: Start difference. First operand 66 states and 83 transitions. Second operand 6 states. [2020-08-22 22:08:17,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:17,275 INFO L93 Difference]: Finished difference Result 130 states and 178 transitions. [2020-08-22 22:08:17,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 22:08:17,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-08-22 22:08:17,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:17,278 INFO L225 Difference]: With dead ends: 130 [2020-08-22 22:08:17,278 INFO L226 Difference]: Without dead ends: 70 [2020-08-22 22:08:17,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:08:17,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-08-22 22:08:17,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-08-22 22:08:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-08-22 22:08:17,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2020-08-22 22:08:17,299 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 50 [2020-08-22 22:08:17,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:17,299 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2020-08-22 22:08:17,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 22:08:17,300 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2020-08-22 22:08:17,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-22 22:08:17,302 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:17,303 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-08-22 22:08:17,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 22:08:17,303 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:17,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:17,304 INFO L82 PathProgramCache]: Analyzing trace with hash 104828256, now seen corresponding path program 1 times [2020-08-22 22:08:17,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:17,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268861720] [2020-08-22 22:08:17,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,436 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-22 22:08:17,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268861720] [2020-08-22 22:08:17,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:17,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 22:08:17,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66638712] [2020-08-22 22:08:17,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:08:17,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:17,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:08:17,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:08:17,440 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand 8 states. [2020-08-22 22:08:17,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:17,558 INFO L93 Difference]: Finished difference Result 142 states and 197 transitions. [2020-08-22 22:08:17,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 22:08:17,559 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-22 22:08:17,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:17,562 INFO L225 Difference]: With dead ends: 142 [2020-08-22 22:08:17,562 INFO L226 Difference]: Without dead ends: 78 [2020-08-22 22:08:17,564 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 22:08:17,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-08-22 22:08:17,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2020-08-22 22:08:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-08-22 22:08:17,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2020-08-22 22:08:17,581 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 51 [2020-08-22 22:08:17,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:17,584 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2020-08-22 22:08:17,584 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:08:17,585 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2020-08-22 22:08:17,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 22:08:17,590 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:17,591 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-08-22 22:08:17,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 22:08:17,591 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:17,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:17,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-08-22 22:08:17,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:17,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750687189] [2020-08-22 22:08:17,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:17,754 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 22:08:17,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750687189] [2020-08-22 22:08:17,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:17,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 22:08:17,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547717312] [2020-08-22 22:08:17,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:08:17,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:17,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:08:17,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:08:17,762 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand 8 states. [2020-08-22 22:08:18,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:18,018 INFO L93 Difference]: Finished difference Result 118 states and 158 transitions. [2020-08-22 22:08:18,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 22:08:18,019 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-08-22 22:08:18,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:18,023 INFO L225 Difference]: With dead ends: 118 [2020-08-22 22:08:18,023 INFO L226 Difference]: Without dead ends: 112 [2020-08-22 22:08:18,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-08-22 22:08:18,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-08-22 22:08:18,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 106. [2020-08-22 22:08:18,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-08-22 22:08:18,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 145 transitions. [2020-08-22 22:08:18,062 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 145 transitions. Word has length 52 [2020-08-22 22:08:18,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:18,063 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 145 transitions. [2020-08-22 22:08:18,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:08:18,063 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 145 transitions. [2020-08-22 22:08:18,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-22 22:08:18,065 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:18,066 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2020-08-22 22:08:18,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 22:08:18,066 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:18,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:18,067 INFO L82 PathProgramCache]: Analyzing trace with hash -521446491, now seen corresponding path program 1 times [2020-08-22 22:08:18,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:18,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772746966] [2020-08-22 22:08:18,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 22:08:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-08-22 22:08:18,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772746966] [2020-08-22 22:08:18,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:18,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 22:08:18,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662051331] [2020-08-22 22:08:18,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:08:18,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:18,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:08:18,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:08:18,203 INFO L87 Difference]: Start difference. First operand 106 states and 145 transitions. Second operand 8 states. [2020-08-22 22:08:18,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:18,378 INFO L93 Difference]: Finished difference Result 227 states and 348 transitions. [2020-08-22 22:08:18,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 22:08:18,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-08-22 22:08:18,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:18,382 INFO L225 Difference]: With dead ends: 227 [2020-08-22 22:08:18,382 INFO L226 Difference]: Without dead ends: 127 [2020-08-22 22:08:18,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 22:08:18,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-08-22 22:08:18,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 115. [2020-08-22 22:08:18,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-08-22 22:08:18,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 161 transitions. [2020-08-22 22:08:18,412 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 161 transitions. Word has length 69 [2020-08-22 22:08:18,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:18,413 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 161 transitions. [2020-08-22 22:08:18,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:08:18,413 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 161 transitions. [2020-08-22 22:08:18,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-22 22:08:18,415 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:18,415 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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] [2020-08-22 22:08:18,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 22:08:18,416 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:18,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:18,417 INFO L82 PathProgramCache]: Analyzing trace with hash -439633211, now seen corresponding path program 1 times [2020-08-22 22:08:18,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:18,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442268522] [2020-08-22 22:08:18,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:18,675 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-22 22:08:18,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442268522] [2020-08-22 22:08:18,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:18,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 22:08:18,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492910739] [2020-08-22 22:08:18,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 22:08:18,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:18,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 22:08:18,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-22 22:08:18,687 INFO L87 Difference]: Start difference. First operand 115 states and 161 transitions. Second operand 10 states. [2020-08-22 22:08:19,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:19,022 INFO L93 Difference]: Finished difference Result 257 states and 400 transitions. [2020-08-22 22:08:19,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 22:08:19,023 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-08-22 22:08:19,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:19,027 INFO L225 Difference]: With dead ends: 257 [2020-08-22 22:08:19,027 INFO L226 Difference]: Without dead ends: 151 [2020-08-22 22:08:19,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-08-22 22:08:19,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-08-22 22:08:19,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 133. [2020-08-22 22:08:19,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-08-22 22:08:19,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 191 transitions. [2020-08-22 22:08:19,061 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 191 transitions. Word has length 70 [2020-08-22 22:08:19,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:19,061 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 191 transitions. [2020-08-22 22:08:19,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 22:08:19,062 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 191 transitions. [2020-08-22 22:08:19,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-08-22 22:08:19,065 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:19,066 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:19,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 22:08:19,066 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:19,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:19,067 INFO L82 PathProgramCache]: Analyzing trace with hash 307755032, now seen corresponding path program 2 times [2020-08-22 22:08:19,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:19,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188030621] [2020-08-22 22:08:19,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,442 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 36 proven. 59 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-08-22 22:08:19,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188030621] [2020-08-22 22:08:19,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:19,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-22 22:08:19,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135392406] [2020-08-22 22:08:19,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 22:08:19,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:19,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 22:08:19,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-22 22:08:19,446 INFO L87 Difference]: Start difference. First operand 133 states and 191 transitions. Second operand 12 states. [2020-08-22 22:08:19,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:19,911 INFO L93 Difference]: Finished difference Result 265 states and 420 transitions. [2020-08-22 22:08:19,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 22:08:19,911 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 105 [2020-08-22 22:08:19,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:19,916 INFO L225 Difference]: With dead ends: 265 [2020-08-22 22:08:19,916 INFO L226 Difference]: Without dead ends: 116 [2020-08-22 22:08:19,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-08-22 22:08:19,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-08-22 22:08:19,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 95. [2020-08-22 22:08:19,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-08-22 22:08:19,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions. [2020-08-22 22:08:19,941 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 105 [2020-08-22 22:08:19,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:19,942 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 117 transitions. [2020-08-22 22:08:19,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 22:08:19,942 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2020-08-22 22:08:19,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-08-22 22:08:19,944 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:19,945 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:19,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 22:08:19,946 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:19,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:19,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1534580400, now seen corresponding path program 1 times [2020-08-22 22:08:19,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:19,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417001339] [2020-08-22 22:08:19,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:19,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 22:08:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,179 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 50 proven. 67 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-08-22 22:08:20,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417001339] [2020-08-22 22:08:20,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:20,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 22:08:20,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611534135] [2020-08-22 22:08:20,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 22:08:20,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:20,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 22:08:20,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-22 22:08:20,183 INFO L87 Difference]: Start difference. First operand 95 states and 117 transitions. Second operand 10 states. [2020-08-22 22:08:20,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:20,421 INFO L93 Difference]: Finished difference Result 193 states and 255 transitions. [2020-08-22 22:08:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 22:08:20,422 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 123 [2020-08-22 22:08:20,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:20,427 INFO L225 Difference]: With dead ends: 193 [2020-08-22 22:08:20,428 INFO L226 Difference]: Without dead ends: 105 [2020-08-22 22:08:20,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-08-22 22:08:20,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-08-22 22:08:20,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-08-22 22:08:20,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-08-22 22:08:20,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 127 transitions. [2020-08-22 22:08:20,451 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 127 transitions. Word has length 123 [2020-08-22 22:08:20,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:20,452 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 127 transitions. [2020-08-22 22:08:20,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 22:08:20,452 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 127 transitions. [2020-08-22 22:08:20,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-08-22 22:08:20,455 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:20,456 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:20,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 22:08:20,456 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:20,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:20,457 INFO L82 PathProgramCache]: Analyzing trace with hash 822116120, now seen corresponding path program 2 times [2020-08-22 22:08:20,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:20,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877667357] [2020-08-22 22:08:20,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 22:08:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:20,856 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 72 proven. 111 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-08-22 22:08:20,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877667357] [2020-08-22 22:08:20,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:20,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-22 22:08:20,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911343108] [2020-08-22 22:08:20,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 22:08:20,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:20,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 22:08:20,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-22 22:08:20,860 INFO L87 Difference]: Start difference. First operand 105 states and 127 transitions. Second operand 12 states. [2020-08-22 22:08:21,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:21,390 INFO L93 Difference]: Finished difference Result 241 states and 326 transitions. [2020-08-22 22:08:21,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-22 22:08:21,391 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 140 [2020-08-22 22:08:21,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:21,395 INFO L225 Difference]: With dead ends: 241 [2020-08-22 22:08:21,396 INFO L226 Difference]: Without dead ends: 141 [2020-08-22 22:08:21,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-08-22 22:08:21,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-08-22 22:08:21,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 123. [2020-08-22 22:08:21,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-08-22 22:08:21,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 149 transitions. [2020-08-22 22:08:21,429 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 149 transitions. Word has length 140 [2020-08-22 22:08:21,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:21,430 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 149 transitions. [2020-08-22 22:08:21,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 22:08:21,431 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 149 transitions. [2020-08-22 22:08:21,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-08-22 22:08:21,433 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:21,434 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:21,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 22:08:21,435 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:21,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:21,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1260071360, now seen corresponding path program 2 times [2020-08-22 22:08:21,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:21,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048607364] [2020-08-22 22:08:21,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 26 proven. 126 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2020-08-22 22:08:21,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048607364] [2020-08-22 22:08:21,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:21,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 22:08:21,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037101288] [2020-08-22 22:08:21,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 22:08:21,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:21,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 22:08:21,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-22 22:08:21,841 INFO L87 Difference]: Start difference. First operand 123 states and 149 transitions. Second operand 10 states. [2020-08-22 22:08:22,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:22,154 INFO L93 Difference]: Finished difference Result 244 states and 326 transitions. [2020-08-22 22:08:22,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 22:08:22,154 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 140 [2020-08-22 22:08:22,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:22,158 INFO L225 Difference]: With dead ends: 244 [2020-08-22 22:08:22,159 INFO L226 Difference]: Without dead ends: 238 [2020-08-22 22:08:22,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2020-08-22 22:08:22,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-08-22 22:08:22,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 213. [2020-08-22 22:08:22,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-08-22 22:08:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 287 transitions. [2020-08-22 22:08:22,202 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 287 transitions. Word has length 140 [2020-08-22 22:08:22,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:22,203 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 287 transitions. [2020-08-22 22:08:22,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 22:08:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 287 transitions. [2020-08-22 22:08:22,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-08-22 22:08:22,208 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:22,209 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:22,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 22:08:22,210 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:22,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:22,210 INFO L82 PathProgramCache]: Analyzing trace with hash -88380307, now seen corresponding path program 3 times [2020-08-22 22:08:22,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:22,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668274042] [2020-08-22 22:08:22,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:22,796 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 179 proven. 163 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2020-08-22 22:08:22,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668274042] [2020-08-22 22:08:22,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:22,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-22 22:08:22,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762468068] [2020-08-22 22:08:22,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 22:08:22,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:22,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 22:08:22,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-22 22:08:22,799 INFO L87 Difference]: Start difference. First operand 213 states and 287 transitions. Second operand 14 states. [2020-08-22 22:08:23,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:23,451 INFO L93 Difference]: Finished difference Result 470 states and 677 transitions. [2020-08-22 22:08:23,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 22:08:23,452 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 193 [2020-08-22 22:08:23,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:23,457 INFO L225 Difference]: With dead ends: 470 [2020-08-22 22:08:23,458 INFO L226 Difference]: Without dead ends: 257 [2020-08-22 22:08:23,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2020-08-22 22:08:23,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-08-22 22:08:23,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 233. [2020-08-22 22:08:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-08-22 22:08:23,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 310 transitions. [2020-08-22 22:08:23,499 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 310 transitions. Word has length 193 [2020-08-22 22:08:23,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:23,500 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 310 transitions. [2020-08-22 22:08:23,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 22:08:23,500 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 310 transitions. [2020-08-22 22:08:23,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-08-22 22:08:23,507 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:23,508 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 18, 18, 17, 14, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:23,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 22:08:23,508 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:23,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:23,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1293350858, now seen corresponding path program 4 times [2020-08-22 22:08:23,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:23,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716716684] [2020-08-22 22:08:23,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:23,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 22:08:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:24,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:24,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2292 backedges. 199 proven. 672 refuted. 0 times theorem prover too weak. 1421 trivial. 0 not checked. [2020-08-22 22:08:24,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716716684] [2020-08-22 22:08:24,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:24,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-22 22:08:24,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039385344] [2020-08-22 22:08:24,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 22:08:24,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:24,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 22:08:24,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-22 22:08:24,522 INFO L87 Difference]: Start difference. First operand 233 states and 310 transitions. Second operand 14 states. [2020-08-22 22:08:25,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:25,240 INFO L93 Difference]: Finished difference Result 541 states and 798 transitions. [2020-08-22 22:08:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-22 22:08:25,241 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 351 [2020-08-22 22:08:25,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:25,248 INFO L225 Difference]: With dead ends: 541 [2020-08-22 22:08:25,248 INFO L226 Difference]: Without dead ends: 308 [2020-08-22 22:08:25,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2020-08-22 22:08:25,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-08-22 22:08:25,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 269. [2020-08-22 22:08:25,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-08-22 22:08:25,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 359 transitions. [2020-08-22 22:08:25,300 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 359 transitions. Word has length 351 [2020-08-22 22:08:25,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:25,301 INFO L479 AbstractCegarLoop]: Abstraction has 269 states and 359 transitions. [2020-08-22 22:08:25,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 22:08:25,301 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 359 transitions. [2020-08-22 22:08:25,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-08-22 22:08:25,305 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:25,306 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:25,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-22 22:08:25,306 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:25,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:25,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1117162661, now seen corresponding path program 5 times [2020-08-22 22:08:25,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:25,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410521720] [2020-08-22 22:08:25,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:25,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 60 proven. 311 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2020-08-22 22:08:25,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410521720] [2020-08-22 22:08:25,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:25,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 22:08:25,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449911220] [2020-08-22 22:08:25,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 22:08:25,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:25,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 22:08:25,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-08-22 22:08:25,966 INFO L87 Difference]: Start difference. First operand 269 states and 359 transitions. Second operand 11 states. [2020-08-22 22:08:26,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:26,404 INFO L93 Difference]: Finished difference Result 530 states and 743 transitions. [2020-08-22 22:08:26,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 22:08:26,405 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 228 [2020-08-22 22:08:26,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:26,419 INFO L225 Difference]: With dead ends: 530 [2020-08-22 22:08:26,420 INFO L226 Difference]: Without dead ends: 524 [2020-08-22 22:08:26,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2020-08-22 22:08:26,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-08-22 22:08:26,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 499. [2020-08-22 22:08:26,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-08-22 22:08:26,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 696 transitions. [2020-08-22 22:08:26,526 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 696 transitions. Word has length 228 [2020-08-22 22:08:26,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:26,527 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 696 transitions. [2020-08-22 22:08:26,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 22:08:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 696 transitions. [2020-08-22 22:08:26,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2020-08-22 22:08:26,553 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:26,553 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 26, 26, 25, 22, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 8, 8, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:26,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-22 22:08:26,554 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:26,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:26,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1689130430, now seen corresponding path program 6 times [2020-08-22 22:08:26,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:26,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688732451] [2020-08-22 22:08:26,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:26,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:26,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:26,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:26,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-22 22:08:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-22 22:08:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-22 22:08:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:27,965 INFO L134 CoverageAnalysis]: Checked inductivity of 4744 backedges. 268 proven. 732 refuted. 0 times theorem prover too weak. 3744 trivial. 0 not checked. [2020-08-22 22:08:27,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [688732451] [2020-08-22 22:08:27,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:27,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 22:08:27,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214723734] [2020-08-22 22:08:27,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 22:08:27,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:27,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 22:08:27,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-08-22 22:08:27,968 INFO L87 Difference]: Start difference. First operand 499 states and 696 transitions. Second operand 11 states. [2020-08-22 22:08:28,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:28,287 INFO L93 Difference]: Finished difference Result 987 states and 1429 transitions. [2020-08-22 22:08:28,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 22:08:28,288 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 495 [2020-08-22 22:08:28,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:28,300 INFO L225 Difference]: With dead ends: 987 [2020-08-22 22:08:28,301 INFO L226 Difference]: Without dead ends: 501 [2020-08-22 22:08:28,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-08-22 22:08:28,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2020-08-22 22:08:28,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 489. [2020-08-22 22:08:28,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-08-22 22:08:28,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 671 transitions. [2020-08-22 22:08:28,387 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 671 transitions. Word has length 495 [2020-08-22 22:08:28,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:28,388 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 671 transitions. [2020-08-22 22:08:28,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 22:08:28,388 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 671 transitions. [2020-08-22 22:08:28,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-08-22 22:08:28,396 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:28,397 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 13, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:28,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-22 22:08:28,397 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:28,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:28,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1748120319, now seen corresponding path program 7 times [2020-08-22 22:08:28,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:28,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006653539] [2020-08-22 22:08:28,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:28,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:29,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-08-22 22:08:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:29,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:29,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:29,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:29,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:29,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:29,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:29,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:29,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:29,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 256 proven. 391 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2020-08-22 22:08:29,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006653539] [2020-08-22 22:08:29,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:29,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-22 22:08:29,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822650042] [2020-08-22 22:08:29,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 22:08:29,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:29,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 22:08:29,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-22 22:08:29,340 INFO L87 Difference]: Start difference. First operand 489 states and 671 transitions. Second operand 14 states. [2020-08-22 22:08:29,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:29,902 INFO L93 Difference]: Finished difference Result 1048 states and 1518 transitions. [2020-08-22 22:08:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 22:08:29,902 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 281 [2020-08-22 22:08:29,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:29,917 INFO L225 Difference]: With dead ends: 1048 [2020-08-22 22:08:29,917 INFO L226 Difference]: Without dead ends: 573 [2020-08-22 22:08:29,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2020-08-22 22:08:29,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-08-22 22:08:30,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 528. [2020-08-22 22:08:30,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-08-22 22:08:30,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 714 transitions. [2020-08-22 22:08:30,030 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 714 transitions. Word has length 281 [2020-08-22 22:08:30,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:30,031 INFO L479 AbstractCegarLoop]: Abstraction has 528 states and 714 transitions. [2020-08-22 22:08:30,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 22:08:30,031 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 714 transitions. [2020-08-22 22:08:30,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2020-08-22 22:08:30,057 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:30,058 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 29, 29, 26, 25, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 8, 8, 8, 8, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:30,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-22 22:08:30,059 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:30,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:30,060 INFO L82 PathProgramCache]: Analyzing trace with hash -162868606, now seen corresponding path program 8 times [2020-08-22 22:08:30,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:30,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813938822] [2020-08-22 22:08:30,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:30,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2020-08-22 22:08:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:31,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:32,187 INFO L134 CoverageAnalysis]: Checked inductivity of 6210 backedges. 1314 proven. 1694 refuted. 0 times theorem prover too weak. 3202 trivial. 0 not checked. [2020-08-22 22:08:32,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813938822] [2020-08-22 22:08:32,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:32,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 22:08:32,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091139915] [2020-08-22 22:08:32,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 22:08:32,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:32,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 22:08:32,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-08-22 22:08:32,196 INFO L87 Difference]: Start difference. First operand 528 states and 714 transitions. Second operand 16 states. [2020-08-22 22:08:33,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:33,205 INFO L93 Difference]: Finished difference Result 958 states and 1419 transitions. [2020-08-22 22:08:33,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-08-22 22:08:33,206 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 563 [2020-08-22 22:08:33,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:33,217 INFO L225 Difference]: With dead ends: 958 [2020-08-22 22:08:33,217 INFO L226 Difference]: Without dead ends: 428 [2020-08-22 22:08:33,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=1004, Unknown=0, NotChecked=0, Total=1190 [2020-08-22 22:08:33,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2020-08-22 22:08:33,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 353. [2020-08-22 22:08:33,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-08-22 22:08:33,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 465 transitions. [2020-08-22 22:08:33,301 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 465 transitions. Word has length 563 [2020-08-22 22:08:33,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:33,302 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 465 transitions. [2020-08-22 22:08:33,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 22:08:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 465 transitions. [2020-08-22 22:08:33,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-08-22 22:08:33,309 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:33,309 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 21, 20, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 6, 6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:33,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-22 22:08:33,310 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:33,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:33,311 INFO L82 PathProgramCache]: Analyzing trace with hash 387691032, now seen corresponding path program 9 times [2020-08-22 22:08:33,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:33,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150211166] [2020-08-22 22:08:33,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:33,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 22:08:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:34,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3985 backedges. 577 proven. 1030 refuted. 0 times theorem prover too weak. 2378 trivial. 0 not checked. [2020-08-22 22:08:35,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150211166] [2020-08-22 22:08:35,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:35,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-22 22:08:35,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895654630] [2020-08-22 22:08:35,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 22:08:35,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:35,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 22:08:35,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:08:35,074 INFO L87 Difference]: Start difference. First operand 353 states and 465 transitions. Second operand 18 states. [2020-08-22 22:08:36,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:36,280 INFO L93 Difference]: Finished difference Result 615 states and 877 transitions. [2020-08-22 22:08:36,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-08-22 22:08:36,280 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 457 [2020-08-22 22:08:36,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:36,287 INFO L225 Difference]: With dead ends: 615 [2020-08-22 22:08:36,287 INFO L226 Difference]: Without dead ends: 230 [2020-08-22 22:08:36,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=261, Invalid=1545, Unknown=0, NotChecked=0, Total=1806 [2020-08-22 22:08:36,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-08-22 22:08:36,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 196. [2020-08-22 22:08:36,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-08-22 22:08:36,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 252 transitions. [2020-08-22 22:08:36,316 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 252 transitions. Word has length 457 [2020-08-22 22:08:36,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:36,317 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 252 transitions. [2020-08-22 22:08:36,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 22:08:36,317 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 252 transitions. [2020-08-22 22:08:36,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2020-08-22 22:08:36,323 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:36,323 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 25, 24, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 9, 9, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:36,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-22 22:08:36,324 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:36,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:36,324 INFO L82 PathProgramCache]: Analyzing trace with hash -444779053, now seen corresponding path program 10 times [2020-08-22 22:08:36,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:36,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288800405] [2020-08-22 22:08:36,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:36,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:36,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:36,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:36,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:36,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:36,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:36,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:36,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 22:08:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-08-22 22:08:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:37,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:38,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5757 backedges. 560 proven. 1270 refuted. 0 times theorem prover too weak. 3927 trivial. 0 not checked. [2020-08-22 22:08:38,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288800405] [2020-08-22 22:08:38,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:38,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 22:08:38,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705060161] [2020-08-22 22:08:38,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 22:08:38,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:38,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 22:08:38,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-08-22 22:08:38,270 INFO L87 Difference]: Start difference. First operand 196 states and 252 transitions. Second operand 16 states. [2020-08-22 22:08:38,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:38,957 INFO L93 Difference]: Finished difference Result 388 states and 523 transitions. [2020-08-22 22:08:38,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-22 22:08:38,957 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 545 [2020-08-22 22:08:38,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:38,963 INFO L225 Difference]: With dead ends: 388 [2020-08-22 22:08:38,963 INFO L226 Difference]: Without dead ends: 210 [2020-08-22 22:08:38,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2020-08-22 22:08:38,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-08-22 22:08:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 193. [2020-08-22 22:08:38,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-08-22 22:08:38,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2020-08-22 22:08:38,987 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 545 [2020-08-22 22:08:38,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:38,988 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2020-08-22 22:08:38,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 22:08:38,988 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2020-08-22 22:08:38,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2020-08-22 22:08:38,997 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:38,998 INFO L422 BasicCegarLoop]: trace histogram [44, 44, 43, 43, 35, 35, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 14, 14, 13, 13, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:38,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-08-22 22:08:38,999 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:38,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:38,999 INFO L82 PathProgramCache]: Analyzing trace with hash 170963555, now seen corresponding path program 11 times [2020-08-22 22:08:39,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:39,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265965889] [2020-08-22 22:08:39,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:39,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:39,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:39,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:39,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:39,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 22:08:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 22:08:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:40,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2020-08-22 22:08:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:41,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:42,400 INFO L134 CoverageAnalysis]: Checked inductivity of 11906 backedges. 949 proven. 2539 refuted. 0 times theorem prover too weak. 8418 trivial. 0 not checked. [2020-08-22 22:08:42,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265965889] [2020-08-22 22:08:42,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:42,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-22 22:08:42,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421527725] [2020-08-22 22:08:42,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 22:08:42,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:42,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 22:08:42,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:08:42,404 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand 18 states. [2020-08-22 22:08:43,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:43,547 INFO L93 Difference]: Finished difference Result 445 states and 643 transitions. [2020-08-22 22:08:43,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-08-22 22:08:43,551 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 774 [2020-08-22 22:08:43,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:43,557 INFO L225 Difference]: With dead ends: 445 [2020-08-22 22:08:43,557 INFO L226 Difference]: Without dead ends: 262 [2020-08-22 22:08:43,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=283, Invalid=1697, Unknown=0, NotChecked=0, Total=1980 [2020-08-22 22:08:43,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-08-22 22:08:43,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 231. [2020-08-22 22:08:43,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-08-22 22:08:43,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 305 transitions. [2020-08-22 22:08:43,590 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 305 transitions. Word has length 774 [2020-08-22 22:08:43,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:43,591 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 305 transitions. [2020-08-22 22:08:43,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 22:08:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 305 transitions. [2020-08-22 22:08:43,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2020-08-22 22:08:43,597 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:43,598 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 23, 23, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 9, 9, 9, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:43,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-08-22 22:08:43,598 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:43,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:43,599 INFO L82 PathProgramCache]: Analyzing trace with hash 2053047112, now seen corresponding path program 12 times [2020-08-22 22:08:43,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:43,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580227660] [2020-08-22 22:08:43,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:43,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:43,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 22:08:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-08-22 22:08:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:44,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:45,389 INFO L134 CoverageAnalysis]: Checked inductivity of 5013 backedges. 884 proven. 974 refuted. 0 times theorem prover too weak. 3155 trivial. 0 not checked. [2020-08-22 22:08:45,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580227660] [2020-08-22 22:08:45,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:45,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-22 22:08:45,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556144704] [2020-08-22 22:08:45,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 22:08:45,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:45,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 22:08:45,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:08:45,399 INFO L87 Difference]: Start difference. First operand 231 states and 305 transitions. Second operand 18 states. [2020-08-22 22:08:46,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:46,353 INFO L93 Difference]: Finished difference Result 467 states and 645 transitions. [2020-08-22 22:08:46,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-08-22 22:08:46,353 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 510 [2020-08-22 22:08:46,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:46,360 INFO L225 Difference]: With dead ends: 467 [2020-08-22 22:08:46,360 INFO L226 Difference]: Without dead ends: 254 [2020-08-22 22:08:46,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2020-08-22 22:08:46,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-08-22 22:08:46,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 225. [2020-08-22 22:08:46,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-08-22 22:08:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 289 transitions. [2020-08-22 22:08:46,413 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 289 transitions. Word has length 510 [2020-08-22 22:08:46,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:46,414 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 289 transitions. [2020-08-22 22:08:46,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 22:08:46,414 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 289 transitions. [2020-08-22 22:08:46,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2020-08-22 22:08:46,421 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:46,422 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 11, 11, 10, 10, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:46,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-08-22 22:08:46,423 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:46,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:46,424 INFO L82 PathProgramCache]: Analyzing trace with hash -425442147, now seen corresponding path program 13 times [2020-08-22 22:08:46,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:46,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016330784] [2020-08-22 22:08:46,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:46,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:46,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:47,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:47,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:47,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:47,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:47,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:47,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:47,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:47,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:47,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:47,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:48,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 22:08:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:48,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-08-22 22:08:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:49,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:50,224 INFO L134 CoverageAnalysis]: Checked inductivity of 6986 backedges. 0 proven. 2642 refuted. 0 times theorem prover too weak. 4344 trivial. 0 not checked. [2020-08-22 22:08:50,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016330784] [2020-08-22 22:08:50,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:50,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-08-22 22:08:50,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346956082] [2020-08-22 22:08:50,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-08-22 22:08:50,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:50,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-08-22 22:08:50,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2020-08-22 22:08:50,227 INFO L87 Difference]: Start difference. First operand 225 states and 289 transitions. Second operand 40 states. [2020-08-22 22:08:52,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:52,731 INFO L93 Difference]: Finished difference Result 248 states and 323 transitions. [2020-08-22 22:08:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-08-22 22:08:52,732 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 598 [2020-08-22 22:08:52,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:52,738 INFO L225 Difference]: With dead ends: 248 [2020-08-22 22:08:52,738 INFO L226 Difference]: Without dead ends: 242 [2020-08-22 22:08:52,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=231, Invalid=4739, Unknown=0, NotChecked=0, Total=4970 [2020-08-22 22:08:52,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-08-22 22:08:52,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 233. [2020-08-22 22:08:52,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-08-22 22:08:52,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 304 transitions. [2020-08-22 22:08:52,769 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 304 transitions. Word has length 598 [2020-08-22 22:08:52,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:52,770 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 304 transitions. [2020-08-22 22:08:52,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-08-22 22:08:52,770 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 304 transitions. [2020-08-22 22:08:52,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2020-08-22 22:08:52,778 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:52,779 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 34, 33, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 14, 14, 12, 12, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:52,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-08-22 22:08:52,781 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:52,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:52,782 INFO L82 PathProgramCache]: Analyzing trace with hash -881046408, now seen corresponding path program 14 times [2020-08-22 22:08:52,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:52,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527153666] [2020-08-22 22:08:52,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:53,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:53,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 22:08:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-08-22 22:08:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:53,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 22:08:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:54,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:55,042 INFO L134 CoverageAnalysis]: Checked inductivity of 10826 backedges. 1189 proven. 2172 refuted. 0 times theorem prover too weak. 7465 trivial. 0 not checked. [2020-08-22 22:08:55,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527153666] [2020-08-22 22:08:55,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:08:55,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-08-22 22:08:55,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254469244] [2020-08-22 22:08:55,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-08-22 22:08:55,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:08:55,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-08-22 22:08:55,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-08-22 22:08:55,046 INFO L87 Difference]: Start difference. First operand 233 states and 304 transitions. Second operand 20 states. [2020-08-22 22:08:56,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:08:56,292 INFO L93 Difference]: Finished difference Result 487 states and 696 transitions. [2020-08-22 22:08:56,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-22 22:08:56,293 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 739 [2020-08-22 22:08:56,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:08:56,299 INFO L225 Difference]: With dead ends: 487 [2020-08-22 22:08:56,299 INFO L226 Difference]: Without dead ends: 267 [2020-08-22 22:08:56,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=333, Invalid=2117, Unknown=0, NotChecked=0, Total=2450 [2020-08-22 22:08:56,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-08-22 22:08:56,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 237. [2020-08-22 22:08:56,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-08-22 22:08:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 304 transitions. [2020-08-22 22:08:56,329 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 304 transitions. Word has length 739 [2020-08-22 22:08:56,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:08:56,329 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 304 transitions. [2020-08-22 22:08:56,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-08-22 22:08:56,330 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 304 transitions. [2020-08-22 22:08:56,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2020-08-22 22:08:56,343 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:08:56,344 INFO L422 BasicCegarLoop]: trace histogram [70, 70, 65, 65, 55, 54, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 23, 23, 19, 19, 15, 15, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:08:56,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-08-22 22:08:56,344 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:08:56,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:08:56,345 INFO L82 PathProgramCache]: Analyzing trace with hash 922809163, now seen corresponding path program 15 times [2020-08-22 22:08:56,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:08:56,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226558818] [2020-08-22 22:08:56,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:08:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:56,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:08:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:56,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:08:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:57,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 22:08:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-08-22 22:08:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:57,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2020-08-22 22:08:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 22:08:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-08-22 22:08:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:08:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:58,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2020-08-22 22:08:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:08:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:08:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:08:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:08:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:08:59,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:08:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:00,758 INFO L134 CoverageAnalysis]: Checked inductivity of 29117 backedges. 835 proven. 3957 refuted. 0 times theorem prover too weak. 24325 trivial. 0 not checked. [2020-08-22 22:09:00,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226558818] [2020-08-22 22:09:00,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:09:00,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-22 22:09:00,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526677792] [2020-08-22 22:09:00,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 22:09:00,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:09:00,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 22:09:00,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-08-22 22:09:00,763 INFO L87 Difference]: Start difference. First operand 237 states and 304 transitions. Second operand 16 states. [2020-08-22 22:09:01,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:09:01,447 INFO L93 Difference]: Finished difference Result 469 states and 617 transitions. [2020-08-22 22:09:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-22 22:09:01,448 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1197 [2020-08-22 22:09:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:09:01,453 INFO L225 Difference]: With dead ends: 469 [2020-08-22 22:09:01,453 INFO L226 Difference]: Without dead ends: 250 [2020-08-22 22:09:01,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2020-08-22 22:09:01,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-08-22 22:09:01,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 229. [2020-08-22 22:09:01,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-08-22 22:09:01,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 289 transitions. [2020-08-22 22:09:01,486 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 289 transitions. Word has length 1197 [2020-08-22 22:09:01,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:09:01,487 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 289 transitions. [2020-08-22 22:09:01,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 22:09:01,487 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 289 transitions. [2020-08-22 22:09:01,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2020-08-22 22:09:01,496 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:09:01,497 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 34, 33, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 13, 13, 13, 13, 9, 9, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:09:01,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-08-22 22:09:01,497 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:09:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:09:01,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1460642147, now seen corresponding path program 16 times [2020-08-22 22:09:01,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:09:01,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132349830] [2020-08-22 22:09:01,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:09:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:01,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:09:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:01,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 22:09:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:09:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:09:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:02,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:09:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:09:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:09:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:09:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:09:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 22:09:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:09:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:09:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:09:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:09:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-08-22 22:09:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:09:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:09:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:09:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:02,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:09:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-08-22 22:09:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:09:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:09:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 22:09:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:09:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 22:09:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 22:09:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 22:09:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 22:09:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:03,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 22:09:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:09:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 10826 backedges. 1054 proven. 2087 refuted. 0 times theorem prover too weak. 7685 trivial. 0 not checked. [2020-08-22 22:09:04,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132349830] [2020-08-22 22:09:04,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:09:04,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-08-22 22:09:04,181 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879545648] [2020-08-22 22:09:04,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 22:09:04,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:09:04,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 22:09:04,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2020-08-22 22:09:04,184 INFO L87 Difference]: Start difference. First operand 229 states and 289 transitions. Second operand 19 states. [2020-08-22 22:09:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:09:05,339 INFO L93 Difference]: Finished difference Result 463 states and 614 transitions. [2020-08-22 22:09:05,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-08-22 22:09:05,340 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 739 [2020-08-22 22:09:05,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:09:05,344 INFO L225 Difference]: With dead ends: 463 [2020-08-22 22:09:05,345 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 22:09:05,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=211, Invalid=1349, Unknown=0, NotChecked=0, Total=1560 [2020-08-22 22:09:05,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 22:09:05,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 22:09:05,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 22:09:05,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 22:09:05,352 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 739 [2020-08-22 22:09:05,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:09:05,352 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 22:09:05,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-22 22:09:05,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 22:09:05,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 22:09:05,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-08-22 22:09:05,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 22:09:25,523 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 6 [2020-08-22 22:09:26,649 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 209 DAG size of output: 42 [2020-08-22 22:09:27,577 WARN L193 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 46 [2020-08-22 22:09:27,843 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 6 [2020-08-22 22:09:28,786 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 46 [2020-08-22 22:09:28,998 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 9 [2020-08-22 22:09:30,840 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 283 DAG size of output: 50 [2020-08-22 22:09:31,649 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 45 [2020-08-22 22:09:31,856 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 1 [2020-08-22 22:09:33,005 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 209 DAG size of output: 42 [2020-08-22 22:09:34,013 WARN L193 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 45 [2020-08-22 22:09:34,241 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 3 [2020-08-22 22:09:34,514 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 6 [2020-08-22 22:09:35,533 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 204 DAG size of output: 45 [2020-08-22 22:09:36,647 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 221 DAG size of output: 65 [2020-08-22 22:09:37,998 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 253 DAG size of output: 50 [2020-08-22 22:09:39,377 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 253 DAG size of output: 50 [2020-08-22 22:09:39,558 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 6 [2020-08-22 22:09:39,829 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 6 [2020-08-22 22:09:40,562 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 42 [2020-08-22 22:09:42,403 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 283 DAG size of output: 50 [2020-08-22 22:09:43,147 WARN L193 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 42 [2020-08-22 22:09:43,395 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 8 [2020-08-22 22:09:43,530 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 1 [2020-08-22 22:09:45,209 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 266 DAG size of output: 65 [2020-08-22 22:09:45,582 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 6 [2020-08-22 22:09:46,950 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 238 DAG size of output: 45 [2020-08-22 22:09:47,230 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 3 [2020-08-22 22:09:47,237 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 22:09:47,237 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 22:09:47,238 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 22:09:47,238 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 22:09:47,238 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 22:09:47,238 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 22:09:47,238 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) the Hoare annotation is: false [2020-08-22 22:09:47,238 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 35 42) the Hoare annotation is: true [2020-08-22 22:09:47,239 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 35 42) the Hoare annotation is: (<= 8 main_~x~0) [2020-08-22 22:09:47,239 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 35 42) the Hoare annotation is: (<= 8 main_~x~0) [2020-08-22 22:09:47,239 INFO L264 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: false [2020-08-22 22:09:47,239 INFO L264 CegarLoopResult]: At program point L38(lines 38 40) the Hoare annotation is: (and (<= 8 main_~x~0) (<= main_~result~0 21) (<= main_~x~0 8) (<= 21 main_~result~0)) [2020-08-22 22:09:47,239 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= 8 main_~x~0) (<= main_~x~0 8)) [2020-08-22 22:09:47,240 INFO L264 CegarLoopResult]: At program point L37-1(line 37) the Hoare annotation is: (and (<= 8 main_~x~0) (<= 21 |main_#t~ret4|) (<= main_~x~0 8) (<= |main_#t~ret4| 21)) [2020-08-22 22:09:47,240 INFO L264 CegarLoopResult]: At program point L38-2(lines 38 40) the Hoare annotation is: (<= 8 main_~x~0) [2020-08-22 22:09:47,240 INFO L264 CegarLoopResult]: At program point L37-2(line 37) the Hoare annotation is: (and (<= 8 main_~x~0) (<= 21 |main_#t~ret4|) (<= main_~x~0 8) (<= |main_#t~ret4| 21)) [2020-08-22 22:09:47,240 INFO L264 CegarLoopResult]: At program point L37-3(line 37) the Hoare annotation is: (and (<= 8 main_~x~0) (<= 21 |main_#t~ret4|) (<= main_~result~0 21) (<= main_~x~0 8) (<= |main_#t~ret4| 21) (<= 21 main_~result~0)) [2020-08-22 22:09:47,240 INFO L271 CegarLoopResult]: At program point fibo2ENTRY(lines 17 25) the Hoare annotation is: true [2020-08-22 22:09:47,240 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (<= 2 |fibo2_#in~n|)) [2020-08-22 22:09:47,241 INFO L264 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (let ((.cse1 (= fibo2_~n |fibo2_#in~n|))) (let ((.cse0 (and (<= 7 |fibo2_#in~n|) .cse1 (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8))) (.cse2 (and (<= 8 fibo2_~n) .cse1)) (.cse3 (and (<= 5 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 5) (<= 6 fibo2_~n)))) (and (or .cse0 (and (<= fibo2_~n 6) .cse1) .cse2) (or (and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|)) (not (<= |fibo2_#in~n| 3))) (or .cse0 .cse2 .cse3 (<= |fibo2_#in~n| 5)) (or .cse0 (not (<= 3 |fibo2_#in~n|)) .cse2 .cse3 (and (<= 3 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 3))) (or (not (<= |fibo2_#in~n| 4)) (and (<= 2 |fibo2_#in~n|) (<= |fibo2_#in~n| 2)))))) [2020-08-22 22:09:47,241 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (<= |fibo2_#in~n| 1) (< 0 fibo2_~n)) [2020-08-22 22:09:47,241 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (let ((.cse1 (= fibo2_~n |fibo2_#in~n|))) (let ((.cse0 (and (<= 7 |fibo2_#in~n|) .cse1 (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8))) (.cse2 (and (<= 8 fibo2_~n) .cse1)) (.cse3 (and (<= 5 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 5) (<= 6 fibo2_~n)))) (and (or .cse0 (and (<= fibo2_~n 6) .cse1) .cse2) (or (and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|)) (not (<= |fibo2_#in~n| 3))) (or .cse0 .cse2 .cse3 (<= |fibo2_#in~n| 5)) (or .cse0 (not (<= 3 |fibo2_#in~n|)) .cse2 .cse3 (and (<= 3 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 3))) (or (not (<= |fibo2_#in~n| 4)) (and (<= 2 |fibo2_#in~n|) (<= |fibo2_#in~n| 2)))))) [2020-08-22 22:09:47,242 INFO L264 CegarLoopResult]: At program point L20(lines 20 24) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (< 0 fibo2_~n)) [2020-08-22 22:09:47,242 INFO L264 CegarLoopResult]: At program point L23-3(line 23) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (let ((.cse0 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|))) (or (<= 8 fibo2_~n) (and (<= 8 .cse0) (<= |fibo2_#in~n| 6) (<= 5 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 5) (<= 6 |fibo2_#in~n|) (<= .cse0 8)) (and (<= 3 |fibo2_#t~ret2|) (<= .cse0 5) (<= |fibo2_#t~ret2| 3) (<= 5 .cse0) (<= 5 |fibo2_#in~n|) (<= |fibo2_#in~n| 5)) (and (<= 13 .cse0) (<= 7 |fibo2_#in~n|) (<= .cse0 13) (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8)) (and (<= 1 .cse0) (<= .cse0 1) (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|) (<= |fibo2_#in~n| 2)))) (not (<= |fibo2_#in~n| 1))) [2020-08-22 22:09:47,242 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (<= |fibo2_#in~n| 0)) [2020-08-22 22:09:47,242 INFO L264 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (let ((.cse0 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|))) (or (<= 8 fibo2_~n) (and (<= 8 .cse0) (<= |fibo2_#in~n| 6) (<= 5 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 5) (<= 6 |fibo2_#in~n|) (<= .cse0 8)) (and (<= 3 |fibo2_#t~ret2|) (<= .cse0 5) (<= |fibo2_#t~ret2| 3) (<= 5 .cse0) (<= 5 |fibo2_#in~n|) (<= |fibo2_#in~n| 5)) (and (<= 13 .cse0) (<= 7 |fibo2_#in~n|) (<= .cse0 13) (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8)) (and (<= 1 .cse0) (<= .cse0 1) (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|) (<= |fibo2_#in~n| 2)))) (not (<= |fibo2_#in~n| 1))) [2020-08-22 22:09:47,242 INFO L264 CegarLoopResult]: At program point L18(lines 18 24) the Hoare annotation is: (= fibo2_~n |fibo2_#in~n|) [2020-08-22 22:09:47,243 INFO L264 CegarLoopResult]: At program point L23-5(line 23) the Hoare annotation is: (let ((.cse3 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (.cse4 (= fibo2_~n |fibo2_#in~n|))) (let ((.cse0 (and (<= 13 .cse3) (<= |fibo2_#in~n| 7) (<= 13 |fibo2_#res|) (<= 7 |fibo2_#in~n|) (<= |fibo2_#res| 13) (<= .cse3 13) .cse4 (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8))) (.cse1 (and (<= |fibo2_#in~n| 6) (<= 8 .cse3) (<= 5 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 5) (<= |fibo2_#res| 8) (<= 6 fibo2_~n) (<= 8 |fibo2_#res|) .cse4 (<= .cse3 8))) (.cse2 (and (<= 8 fibo2_~n) .cse4))) (and (or .cse0 (not (<= 6 |fibo2_#in~n|)) .cse1 .cse2) (or .cse0 (not (<= 3 |fibo2_#in~n|)) .cse1 .cse2 (and (<= 3 |fibo2_#t~ret2|) (<= .cse3 5) (<= |fibo2_#res| 5) (<= |fibo2_#t~ret2| 3) (<= 5 .cse3) (<= 5 |fibo2_#res|))) (or (not (<= |fibo2_#in~n| 4)) (<= |fibo2_#in~n| 2)) .cse4 (or (and (<= 1 .cse3) (<= .cse3 1) (<= 1 |fibo2_#res|) (<= |fibo2_#t~ret2| 1) (<= |fibo2_#res| 1) (<= 1 |fibo2_#t~ret2|) (<= 2 |fibo2_#in~n|)) (not (<= |fibo2_#in~n| 3)))))) [2020-08-22 22:09:47,243 INFO L264 CegarLoopResult]: At program point L23-6(line 23) the Hoare annotation is: (and (let ((.cse0 (= fibo2_~n |fibo2_#in~n|))) (or (and (<= 1 |fibo2_#res|) (<= |fibo2_#t~ret2| 1) (<= |fibo2_#res| 1) .cse0 (<= 1 |fibo2_#t~ret2|) (<= |fibo2_#in~n| 2)) (and (<= 8 fibo2_~n) .cse0) (and (<= 3 |fibo2_#t~ret2|) (<= |fibo2_#res| 5) (<= |fibo2_#t~ret2| 3) .cse0 (<= 5 |fibo2_#in~n|) (<= |fibo2_#in~n| 5) (<= 5 |fibo2_#res|)) (and (<= 13 |fibo2_#res|) (<= 7 |fibo2_#in~n|) (<= |fibo2_#res| 13) .cse0 (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8)) (and (<= |fibo2_#in~n| 6) (<= 5 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 5) (<= |fibo2_#res| 8) .cse0 (<= 8 |fibo2_#res|) (<= 6 |fibo2_#in~n|)))) (not (<= |fibo2_#in~n| 1))) [2020-08-22 22:09:47,243 INFO L264 CegarLoopResult]: At program point fibo2FINAL(lines 17 25) the Hoare annotation is: (let ((.cse0 (<= |fibo2_#in~n| 2))) (and (or (and (<= |fibo2_#res| 8) (<= 8 |fibo2_#res|) (<= 6 |fibo2_#in~n|)) (<= 7 |fibo2_#in~n|) (and (<= |fibo2_#res| 5) (<= 5 |fibo2_#in~n|) (<= |fibo2_#in~n| 5) (<= 5 |fibo2_#res|)) .cse0) (or (and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|)) (< 0 fibo2_~n)) (= fibo2_~n |fibo2_#in~n|) (or (<= |fibo2_#in~n| 6) (<= 8 fibo2_~n) (and (<= 13 |fibo2_#res|) (<= |fibo2_#res| 13))) (or (<= |fibo2_#in~n| 0) (and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1)) (not .cse0)))) [2020-08-22 22:09:47,244 INFO L264 CegarLoopResult]: At program point fibo2EXIT(lines 17 25) the Hoare annotation is: (let ((.cse0 (<= |fibo2_#in~n| 2))) (and (or (and (<= |fibo2_#res| 8) (<= 8 |fibo2_#res|) (<= 6 |fibo2_#in~n|)) (<= 7 |fibo2_#in~n|) (and (<= |fibo2_#res| 5) (<= 5 |fibo2_#in~n|) (<= |fibo2_#in~n| 5) (<= 5 |fibo2_#res|)) .cse0) (or (and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|)) (< 0 fibo2_~n)) (= fibo2_~n |fibo2_#in~n|) (or (<= |fibo2_#in~n| 6) (<= 8 fibo2_~n) (and (<= 13 |fibo2_#res|) (<= |fibo2_#res| 13))) (or (<= |fibo2_#in~n| 0) (and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1)) (not .cse0)))) [2020-08-22 22:09:47,244 INFO L271 CegarLoopResult]: At program point fibo1ENTRY(lines 7 15) the Hoare annotation is: true [2020-08-22 22:09:47,244 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (<= 2 |fibo1_#in~n|) (= fibo1_~n |fibo1_#in~n|)) [2020-08-22 22:09:47,244 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (and (or (and (<= |fibo1_#t~ret0| 1) (<= 1 |fibo1_#t~ret0|) (<= 2 |fibo1_#in~n|) .cse0) (not (<= |fibo1_#in~n| 3))) (or (<= |fibo1_#in~n| 2) (and (<= 8 fibo1_~n) (<= 13 |fibo1_#t~ret0|) .cse0 (<= |fibo1_#t~ret0| 13)) (and (<= 7 fibo1_~n) .cse0 (<= fibo1_~n 7)) (and (<= |fibo1_#in~n| 6) (<= 5 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 5) .cse0 (<= 6 |fibo1_#in~n|)) (and (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2) .cse0 (<= |fibo1_#in~n| 4)) (and .cse0 (<= 9 |fibo1_#in~n|))))) [2020-08-22 22:09:47,245 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (<= |fibo1_#in~n| 1) (= fibo1_~n |fibo1_#in~n|) (< 0 fibo1_~n)) [2020-08-22 22:09:47,245 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (and (or (and (<= |fibo1_#t~ret0| 1) (<= 1 |fibo1_#t~ret0|) (<= 2 |fibo1_#in~n|) .cse0) (not (<= |fibo1_#in~n| 3))) (or (<= |fibo1_#in~n| 2) (and (<= 8 fibo1_~n) (<= 13 |fibo1_#t~ret0|) .cse0 (<= |fibo1_#t~ret0| 13)) (and (<= 7 fibo1_~n) .cse0 (<= fibo1_~n 7)) (and (<= |fibo1_#in~n| 6) (<= 5 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 5) .cse0 (<= 6 |fibo1_#in~n|)) (and (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2) .cse0 (<= |fibo1_#in~n| 4)) (and .cse0 (<= 9 |fibo1_#in~n|))))) [2020-08-22 22:09:47,245 INFO L264 CegarLoopResult]: At program point fibo1FINAL(lines 7 15) the Hoare annotation is: (and (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (or (and (<= 8 |fibo1_#res|) (<= |fibo1_#res| 8) (<= |fibo1_#in~n| 6) .cse0 (<= 6 |fibo1_#in~n|)) (and (<= |fibo1_#res| 3) (<= 3 |fibo1_#res|) .cse0 (<= |fibo1_#in~n| 4)) (and .cse0 (<= 9 |fibo1_#in~n|)) (and (<= |fibo1_#in~n| 2) .cse0) (and (<= 7 |fibo1_#in~n|) (or (and .cse0 (<= fibo1_~n 7)) (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) .cse0))))) (or (<= |fibo1_#in~n| 0) (and (<= |fibo1_#res| 1) (<= 1 |fibo1_#res|)) (not (<= |fibo1_#in~n| 3))) (or (and (<= 0 |fibo1_#res|) (<= |fibo1_#res| 0)) (< 0 fibo1_~n))) [2020-08-22 22:09:47,245 INFO L264 CegarLoopResult]: At program point L10(lines 10 14) the Hoare annotation is: (and (= fibo1_~n |fibo1_#in~n|) (< 0 fibo1_~n)) [2020-08-22 22:09:47,246 INFO L264 CegarLoopResult]: At program point L13-3(line 13) the Hoare annotation is: (let ((.cse0 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|))) (and (or (and (<= 5 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 5) (<= 8 .cse0) (<= .cse0 8) (<= 6 |fibo1_#in~n|)) (<= 7 |fibo1_#in~n|) (and (<= .cse0 1) (<= |fibo1_#t~ret0| 1) (<= 1 .cse0) (<= |fibo1_#in~n| 2) (<= 1 |fibo1_#t~ret0|) (< 1 fibo1_~n)) (and (<= .cse0 3) (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2) (<= 4 |fibo1_#in~n|) (<= 3 .cse0) (<= |fibo1_#in~n| 4))) (let ((.cse1 (= fibo1_~n |fibo1_#in~n|))) (or (and .cse1 (<= fibo1_~n 7)) (and (<= 21 .cse0) (<= 13 |fibo1_#t~ret0|) .cse1 (<= .cse0 21) (<= |fibo1_#t~ret0| 13)) (and .cse1 (<= 9 |fibo1_#in~n|)))))) [2020-08-22 22:09:47,246 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (and (<= |fibo1_#in~n| 0) (= fibo1_~n |fibo1_#in~n|)) [2020-08-22 22:09:47,246 INFO L264 CegarLoopResult]: At program point L13-4(line 13) the Hoare annotation is: (let ((.cse0 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|))) (and (or (and (<= 5 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 5) (<= 8 .cse0) (<= .cse0 8) (<= 6 |fibo1_#in~n|)) (<= 7 |fibo1_#in~n|) (and (<= .cse0 1) (<= |fibo1_#t~ret0| 1) (<= 1 .cse0) (<= |fibo1_#in~n| 2) (<= 1 |fibo1_#t~ret0|) (< 1 fibo1_~n)) (and (<= .cse0 3) (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2) (<= 4 |fibo1_#in~n|) (<= 3 .cse0) (<= |fibo1_#in~n| 4))) (let ((.cse1 (= fibo1_~n |fibo1_#in~n|))) (or (and .cse1 (<= fibo1_~n 7)) (and (<= 21 .cse0) (<= 13 |fibo1_#t~ret0|) .cse1 (<= .cse0 21) (<= |fibo1_#t~ret0| 13)) (and .cse1 (<= 9 |fibo1_#in~n|)))))) [2020-08-22 22:09:47,246 INFO L264 CegarLoopResult]: At program point L8(lines 8 14) the Hoare annotation is: (= fibo1_~n |fibo1_#in~n|) [2020-08-22 22:09:47,247 INFO L264 CegarLoopResult]: At program point L13-5(line 13) the Hoare annotation is: (let ((.cse3 (<= |fibo1_#in~n| 4)) (.cse0 (= fibo1_~n |fibo1_#in~n|)) (.cse2 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|))) (and (let ((.cse1 (<= fibo1_~n 7))) (or (and (<= 7 |fibo1_#in~n|) .cse0 (or (and .cse0 .cse1) (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) (<= 21 .cse2) (<= 13 |fibo1_#t~ret0|) (<= .cse2 21) (<= |fibo1_#t~ret0| 13)))) (and (<= 8 |fibo1_#res|) (<= |fibo1_#res| 8) (<= 5 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 5) .cse0 (<= 8 .cse2) (<= .cse2 8) .cse1 (<= 6 |fibo1_#in~n|)) (and .cse0 (<= 9 |fibo1_#in~n|)) .cse3)) (or (and (<= |fibo1_#res| 3) (<= .cse2 3) (<= 3 |fibo1_#res|) (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2) .cse0 (<= 3 .cse2)) (not .cse3) (and (<= |fibo1_#in~n| 2) .cse0)) (or (and (<= .cse2 1) (<= |fibo1_#t~ret0| 1) (<= 1 .cse2) (<= 1 |fibo1_#t~ret0|) (< 1 fibo1_~n) (<= |fibo1_#res| 1) (<= 1 |fibo1_#res|)) (not (<= |fibo1_#in~n| 3))))) [2020-08-22 22:09:47,247 INFO L264 CegarLoopResult]: At program point L13-6(line 13) the Hoare annotation is: (and (or (and (<= |fibo1_#res| 3) (<= 3 |fibo1_#res|)) (not (<= 3 |fibo1_#in~n|)) (not (<= |fibo1_#in~n| 5))) (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (or (and .cse0 (<= fibo1_~n 7)) (and .cse0 (<= 9 |fibo1_#in~n|)) (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) .cse0))) (or (and (<= 8 |fibo1_#res|) (<= |fibo1_#res| 8)) (not (<= |fibo1_#in~n| 6)) (<= |fibo1_#in~n| 4)) (< 1 fibo1_~n) (or (and (<= |fibo1_#res| 1) (<= 1 |fibo1_#res|)) (not (<= |fibo1_#in~n| 3)))) [2020-08-22 22:09:47,247 INFO L264 CegarLoopResult]: At program point fibo1EXIT(lines 7 15) the Hoare annotation is: (and (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (or (and (<= 8 |fibo1_#res|) (<= |fibo1_#res| 8) (<= |fibo1_#in~n| 6) .cse0 (<= 6 |fibo1_#in~n|)) (and (<= |fibo1_#res| 3) (<= 3 |fibo1_#res|) .cse0 (<= |fibo1_#in~n| 4)) (and .cse0 (<= 9 |fibo1_#in~n|)) (and (<= |fibo1_#in~n| 2) .cse0) (and (<= 7 |fibo1_#in~n|) (or (and .cse0 (<= fibo1_~n 7)) (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) .cse0))))) (or (<= |fibo1_#in~n| 0) (and (<= |fibo1_#res| 1) (<= 1 |fibo1_#res|)) (not (<= |fibo1_#in~n| 3))) (or (and (<= 0 |fibo1_#res|) (<= |fibo1_#res| 0)) (< 0 fibo1_~n))) [2020-08-22 22:09:47,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 10:09:47 BoogieIcfgContainer [2020-08-22 22:09:47,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 22:09:47,280 INFO L168 Benchmark]: Toolchain (without parser) took 92505.42 ms. Allocated memory was 137.4 MB in the beginning and 2.3 GB in the end (delta: 2.2 GB). Free memory was 102.4 MB in the beginning and 240.5 MB in the end (delta: -138.1 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2020-08-22 22:09:47,281 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 22:09:47,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.56 ms. Allocated memory is still 137.4 MB. Free memory was 102.2 MB in the beginning and 92.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-08-22 22:09:47,282 INFO L168 Benchmark]: Boogie Preprocessor took 136.93 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 92.1 MB in the beginning and 181.4 MB in the end (delta: -89.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-08-22 22:09:47,283 INFO L168 Benchmark]: RCFGBuilder took 346.33 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 166.5 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-08-22 22:09:47,283 INFO L168 Benchmark]: TraceAbstraction took 91772.02 ms. Allocated memory was 202.4 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 166.5 MB in the beginning and 240.5 MB in the end (delta: -74.1 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2020-08-22 22:09:47,285 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.56 ms. Allocated memory is still 137.4 MB. Free memory was 102.2 MB in the beginning and 92.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.93 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 92.1 MB in the beginning and 181.4 MB in the end (delta: -89.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 346.33 ms. Allocated memory is still 202.4 MB. Free memory was 181.4 MB in the beginning and 166.5 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 91772.02 ms. Allocated memory was 202.4 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 166.5 MB in the beginning and 240.5 MB in the end (delta: -74.1 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 39]: 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 - ProcedureContractResult [Line: 35]: Procedure Contract for main Derived contract for procedure main: 8 <= x - ProcedureContractResult [Line: 17]: Procedure Contract for fibo2 Derived contract for procedure fibo2: ((((((((\result <= 8 && 8 <= \result) && 6 <= \old(n)) || 7 <= \old(n)) || (((\result <= 5 && 5 <= \old(n)) && \old(n) <= 5) && 5 <= \result)) || \old(n) <= 2) && ((\result <= 0 && 0 <= \result) || 0 < n)) && n == \old(n)) && ((\old(n) <= 6 || 8 <= n) || (13 <= \result && \result <= 13))) && ((\old(n) <= 0 || (1 <= \result && \result <= 1)) || !(\old(n) <= 2)) - ProcedureContractResult [Line: 7]: Procedure Contract for fibo1 Derived contract for procedure fibo1: (((((((((8 <= \result && \result <= 8) && \old(n) <= 6) && n == \old(n)) && 6 <= \old(n)) || (((\result <= 3 && 3 <= \result) && n == \old(n)) && \old(n) <= 4)) || (n == \old(n) && 9 <= \old(n))) || (\old(n) <= 2 && n == \old(n))) || (7 <= \old(n) && ((n == \old(n) && n <= 7) || ((\result <= 21 && 21 <= \result) && n == \old(n))))) && ((\old(n) <= 0 || (\result <= 1 && 1 <= \result)) || !(\old(n) <= 3))) && ((0 <= \result && \result <= 0) || 0 < n) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 49.7s, OverallIterations: 27, TraceHistogramMax: 70, AutomataDifference: 16.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 41.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1516 SDtfs, 2079 SDslu, 13048 SDs, 0 SdLazy, 11322 SolverSat, 1063 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2714 GetRequests, 2122 SyntacticMatches, 0 SemanticMatches, 592 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3440 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=528occurred in iteration=18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 27 MinimizatonAttempts, 503 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 9775 PreInvPairs, 27808 NumberOfFragments, 1853 HoareAnnotationTreeSize, 9775 FomulaSimplifications, 1470847 FormulaSimplificationTreeSizeReduction, 19.6s HoareSimplificationTime, 45 FomulaSimplificationsInter, 423294 FormulaSimplificationTreeSizeReductionInter, 21.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 27.0s InterpolantComputationTime, 8570 NumberOfCodeBlocks, 8570 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 8543 ConstructedInterpolants, 0 QuantifiedInterpolants, 8182519 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 2 PerfectInterpolantSequences, 80665/101702 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...