/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 20:17:18,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 20:17:18,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 20:17:18,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 20:17:18,597 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 20:17:18,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 20:17:18,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 20:17:18,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 20:17:18,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 20:17:18,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 20:17:18,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 20:17:18,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 20:17:18,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 20:17:18,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 20:17:18,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 20:17:18,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 20:17:18,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 20:17:18,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 20:17:18,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 20:17:18,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 20:17:18,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 20:17:18,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 20:17:18,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 20:17:18,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 20:17:18,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 20:17:18,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 20:17:18,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 20:17:18,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 20:17:18,634 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 20:17:18,659 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 20:17:18,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 20:17:18,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 20:17:18,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 20:17:18,661 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 20:17:18,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 20:17:18,661 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 20:17:18,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 20:17:18,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 20:17:18,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 20:17:18,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 20:17:18,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 20:17:18,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 20:17:18,663 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 20:17:18,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 20:17:18,663 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 20:17:18,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 20:17:18,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 20:17:18,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 20:17:18,664 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 20:17:18,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 20:17:18,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:17:18,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 20:17:18,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 20:17:18,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 20:17:18,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 20:17:18,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 20:17:18,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 20:17:18,666 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 20:17:18,666 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SHALLOWEST; [2020-08-18 20:17:19,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 20:17:19,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 20:17:19,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 20:17:19,021 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 20:17:19,022 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 20:17:19,022 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-08-18 20:17:19,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94db212d0/4cc05d7da30b48b9be66aa531a2267a9/FLAGe6c845105 [2020-08-18 20:17:19,605 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 20:17:19,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-08-18 20:17:19,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94db212d0/4cc05d7da30b48b9be66aa531a2267a9/FLAGe6c845105 [2020-08-18 20:17:19,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/94db212d0/4cc05d7da30b48b9be66aa531a2267a9 [2020-08-18 20:17:19,947 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 20:17:19,949 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 20:17:19,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 20:17:19,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 20:17:19,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 20:17:19,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:17:19" (1/1) ... [2020-08-18 20:17:19,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3705ef2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:17:19, skipping insertion in model container [2020-08-18 20:17:19,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 08:17:19" (1/1) ... [2020-08-18 20:17:19,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 20:17:19,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 20:17:20,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:17:20,201 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 20:17:20,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 20:17:20,232 INFO L208 MainTranslator]: Completed translation [2020-08-18 20:17:20,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:17:20 WrapperNode [2020-08-18 20:17:20,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 20:17:20,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 20:17:20,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 20:17:20,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 20:17:20,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:17:20" (1/1) ... [2020-08-18 20:17:20,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:17:20" (1/1) ... [2020-08-18 20:17:20,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:17:20" (1/1) ... [2020-08-18 20:17:20,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:17:20" (1/1) ... [2020-08-18 20:17:20,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:17:20" (1/1) ... [2020-08-18 20:17:20,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:17:20" (1/1) ... [2020-08-18 20:17:20,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:17:20" (1/1) ... [2020-08-18 20:17:20,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 20:17:20,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 20:17:20,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 20:17:20,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 20:17:20,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:17:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 20:17:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 20:17:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 20:17:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-08-18 20:17:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-08-18 20:17:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 20:17:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 20:17:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 20:17:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-08-18 20:17:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-08-18 20:17:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 20:17:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 20:17:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 20:17:20,643 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 20:17:20,644 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-18 20:17:20,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:17:20 BoogieIcfgContainer [2020-08-18 20:17:20,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 20:17:20,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 20:17:20,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 20:17:20,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 20:17:20,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 08:17:19" (1/3) ... [2020-08-18 20:17:20,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5a6c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:17:20, skipping insertion in model container [2020-08-18 20:17:20,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 08:17:20" (2/3) ... [2020-08-18 20:17:20,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5a6c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 08:17:20, skipping insertion in model container [2020-08-18 20:17:20,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 08:17:20" (3/3) ... [2020-08-18 20:17:20,659 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2020-08-18 20:17:20,673 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 20:17:20,681 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 20:17:20,711 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 20:17:20,750 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 20:17:20,750 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 20:17:20,751 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 20:17:20,751 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 20:17:20,751 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 20:17:20,752 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 20:17:20,752 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 20:17:20,752 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 20:17:20,782 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-08-18 20:17:20,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-18 20:17:20,790 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:20,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:20,792 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:20,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:20,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-08-18 20:17:20,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:20,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463689168] [2020-08-18 20:17:20,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:17:21,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463689168] [2020-08-18 20:17:21,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:17:21,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 20:17:21,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187079262] [2020-08-18 20:17:21,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 20:17:21,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:21,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 20:17:21,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 20:17:21,089 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-08-18 20:17:21,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:21,211 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-08-18 20:17:21,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 20:17:21,214 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-08-18 20:17:21,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:21,224 INFO L225 Difference]: With dead ends: 44 [2020-08-18 20:17:21,225 INFO L226 Difference]: Without dead ends: 30 [2020-08-18 20:17:21,228 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 [2020-08-18 20:17:21,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-08-18 20:17:21,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-08-18 20:17:21,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-08-18 20:17:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-08-18 20:17:21,274 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-08-18 20:17:21,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:21,275 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-08-18 20:17:21,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 20:17:21,276 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-08-18 20:17:21,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-18 20:17:21,277 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:21,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:21,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 20:17:21,279 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:21,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:21,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-08-18 20:17:21,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:21,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530207563] [2020-08-18 20:17:21,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 20:17:21,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530207563] [2020-08-18 20:17:21,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 20:17:21,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 20:17:21,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754101929] [2020-08-18 20:17:21,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 20:17:21,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:21,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 20:17:21,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 20:17:21,358 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-08-18 20:17:21,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:21,426 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-08-18 20:17:21,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 20:17:21,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-08-18 20:17:21,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:21,429 INFO L225 Difference]: With dead ends: 36 [2020-08-18 20:17:21,429 INFO L226 Difference]: Without dead ends: 32 [2020-08-18 20:17:21,431 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 [2020-08-18 20:17:21,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-08-18 20:17:21,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-08-18 20:17:21,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-08-18 20:17:21,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-08-18 20:17:21,441 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-08-18 20:17:21,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:21,441 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-08-18 20:17:21,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 20:17:21,442 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-08-18 20:17:21,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-18 20:17:21,444 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:21,444 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:21,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 20:17:21,444 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:21,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:21,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-08-18 20:17:21,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:21,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795772853] [2020-08-18 20:17:21,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:17:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,594 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 20:17:21,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795772853] [2020-08-18 20:17:21,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:21,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 20:17:21,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165609041] [2020-08-18 20:17:21,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:17:21,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:21,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:17:21,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:17:21,597 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 7 states. [2020-08-18 20:17:21,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:21,690 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2020-08-18 20:17:21,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 20:17:21,691 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-08-18 20:17:21,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:21,693 INFO L225 Difference]: With dead ends: 58 [2020-08-18 20:17:21,693 INFO L226 Difference]: Without dead ends: 34 [2020-08-18 20:17:21,695 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 [2020-08-18 20:17:21,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-08-18 20:17:21,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-08-18 20:17:21,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-18 20:17:21,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-08-18 20:17:21,705 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2020-08-18 20:17:21,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:21,706 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-08-18 20:17:21,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:17:21,706 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-08-18 20:17:21,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-18 20:17:21,708 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:21,709 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] [2020-08-18 20:17:21,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 20:17:21,709 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:21,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:21,710 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-08-18 20:17:21,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:21,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6475905] [2020-08-18 20:17:21,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:21,832 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-18 20:17:21,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6475905] [2020-08-18 20:17:21,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:21,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 20:17:21,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093828715] [2020-08-18 20:17:21,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 20:17:21,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:21,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 20:17:21,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-18 20:17:21,836 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 7 states. [2020-08-18 20:17:22,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:22,044 INFO L93 Difference]: Finished difference Result 54 states and 74 transitions. [2020-08-18 20:17:22,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 20:17:22,045 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-08-18 20:17:22,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:22,049 INFO L225 Difference]: With dead ends: 54 [2020-08-18 20:17:22,049 INFO L226 Difference]: Without dead ends: 50 [2020-08-18 20:17:22,050 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 [2020-08-18 20:17:22,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-08-18 20:17:22,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-08-18 20:17:22,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-08-18 20:17:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-08-18 20:17:22,064 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 27 [2020-08-18 20:17:22,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:22,065 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-08-18 20:17:22,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 20:17:22,065 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-08-18 20:17:22,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-08-18 20:17:22,068 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:22,068 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] [2020-08-18 20:17:22,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 20:17:22,069 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:22,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:22,069 INFO L82 PathProgramCache]: Analyzing trace with hash 986908919, now seen corresponding path program 1 times [2020-08-18 20:17:22,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:22,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383201709] [2020-08-18 20:17:22,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 20:17:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-18 20:17:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,186 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-18 20:17:22,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383201709] [2020-08-18 20:17:22,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:22,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-18 20:17:22,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881454461] [2020-08-18 20:17:22,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 20:17:22,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:22,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 20:17:22,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-18 20:17:22,190 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 6 states. [2020-08-18 20:17:22,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:22,271 INFO L93 Difference]: Finished difference Result 94 states and 142 transitions. [2020-08-18 20:17:22,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 20:17:22,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-08-18 20:17:22,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:22,274 INFO L225 Difference]: With dead ends: 94 [2020-08-18 20:17:22,274 INFO L226 Difference]: Without dead ends: 52 [2020-08-18 20:17:22,276 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 [2020-08-18 20:17:22,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-08-18 20:17:22,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-08-18 20:17:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-08-18 20:17:22,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2020-08-18 20:17:22,289 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 39 [2020-08-18 20:17:22,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:22,290 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2020-08-18 20:17:22,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 20:17:22,290 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2020-08-18 20:17:22,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-08-18 20:17:22,293 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:22,293 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] [2020-08-18 20:17:22,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 20:17:22,294 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:22,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:22,294 INFO L82 PathProgramCache]: Analyzing trace with hash -2100495745, now seen corresponding path program 1 times [2020-08-18 20:17:22,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:22,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284442079] [2020-08-18 20:17:22,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,434 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-18 20:17:22,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284442079] [2020-08-18 20:17:22,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:22,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 20:17:22,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117457158] [2020-08-18 20:17:22,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 20:17:22,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:22,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 20:17:22,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 20:17:22,437 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand 8 states. [2020-08-18 20:17:22,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:22,552 INFO L93 Difference]: Finished difference Result 103 states and 158 transitions. [2020-08-18 20:17:22,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 20:17:22,553 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2020-08-18 20:17:22,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:22,555 INFO L225 Difference]: With dead ends: 103 [2020-08-18 20:17:22,555 INFO L226 Difference]: Without dead ends: 57 [2020-08-18 20:17:22,557 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 [2020-08-18 20:17:22,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-08-18 20:17:22,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2020-08-18 20:17:22,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-08-18 20:17:22,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions. [2020-08-18 20:17:22,569 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 74 transitions. Word has length 40 [2020-08-18 20:17:22,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:22,570 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 74 transitions. [2020-08-18 20:17:22,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 20:17:22,570 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions. [2020-08-18 20:17:22,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-08-18 20:17:22,572 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:22,573 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] [2020-08-18 20:17:22,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 20:17:22,573 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:22,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:22,574 INFO L82 PathProgramCache]: Analyzing trace with hash 208191613, now seen corresponding path program 1 times [2020-08-18 20:17:22,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:22,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968687581] [2020-08-18 20:17:22,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,707 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-18 20:17:22,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968687581] [2020-08-18 20:17:22,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:22,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 20:17:22,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423920669] [2020-08-18 20:17:22,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 20:17:22,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:22,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 20:17:22,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 20:17:22,711 INFO L87 Difference]: Start difference. First operand 54 states and 74 transitions. Second operand 8 states. [2020-08-18 20:17:22,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:22,907 INFO L93 Difference]: Finished difference Result 86 states and 126 transitions. [2020-08-18 20:17:22,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 20:17:22,907 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-08-18 20:17:22,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:22,910 INFO L225 Difference]: With dead ends: 86 [2020-08-18 20:17:22,910 INFO L226 Difference]: Without dead ends: 82 [2020-08-18 20:17:22,911 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 [2020-08-18 20:17:22,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-08-18 20:17:22,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2020-08-18 20:17:22,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-08-18 20:17:22,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 118 transitions. [2020-08-18 20:17:22,928 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 118 transitions. Word has length 41 [2020-08-18 20:17:22,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:22,929 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 118 transitions. [2020-08-18 20:17:22,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 20:17:22,929 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 118 transitions. [2020-08-18 20:17:22,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-08-18 20:17:22,932 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:22,933 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2020-08-18 20:17:22,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 20:17:22,933 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:22,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:22,934 INFO L82 PathProgramCache]: Analyzing trace with hash -405677468, now seen corresponding path program 1 times [2020-08-18 20:17:22,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:22,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398770823] [2020-08-18 20:17:22,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:22,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-18 20:17:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-08-18 20:17:23,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398770823] [2020-08-18 20:17:23,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:23,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 20:17:23,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324996650] [2020-08-18 20:17:23,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 20:17:23,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:23,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 20:17:23,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 20:17:23,168 INFO L87 Difference]: Start difference. First operand 79 states and 118 transitions. Second operand 8 states. [2020-08-18 20:17:23,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:23,311 INFO L93 Difference]: Finished difference Result 167 states and 288 transitions. [2020-08-18 20:17:23,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 20:17:23,314 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-08-18 20:17:23,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:23,320 INFO L225 Difference]: With dead ends: 167 [2020-08-18 20:17:23,321 INFO L226 Difference]: Without dead ends: 94 [2020-08-18 20:17:23,322 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 [2020-08-18 20:17:23,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-08-18 20:17:23,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2020-08-18 20:17:23,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-08-18 20:17:23,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 134 transitions. [2020-08-18 20:17:23,357 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 134 transitions. Word has length 54 [2020-08-18 20:17:23,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:23,357 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 134 transitions. [2020-08-18 20:17:23,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 20:17:23,358 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 134 transitions. [2020-08-18 20:17:23,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-08-18 20:17:23,361 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:23,362 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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] [2020-08-18 20:17:23,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 20:17:23,362 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:23,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:23,363 INFO L82 PathProgramCache]: Analyzing trace with hash -242988780, now seen corresponding path program 1 times [2020-08-18 20:17:23,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:23,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849395220] [2020-08-18 20:17:23,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,540 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-18 20:17:23,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849395220] [2020-08-18 20:17:23,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:23,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 20:17:23,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827623150] [2020-08-18 20:17:23,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 20:17:23,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:23,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 20:17:23,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-18 20:17:23,543 INFO L87 Difference]: Start difference. First operand 88 states and 134 transitions. Second operand 10 states. [2020-08-18 20:17:23,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:23,783 INFO L93 Difference]: Finished difference Result 188 states and 331 transitions. [2020-08-18 20:17:23,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 20:17:23,784 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2020-08-18 20:17:23,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:23,788 INFO L225 Difference]: With dead ends: 188 [2020-08-18 20:17:23,789 INFO L226 Difference]: Without dead ends: 109 [2020-08-18 20:17:23,791 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 [2020-08-18 20:17:23,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-08-18 20:17:23,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 100. [2020-08-18 20:17:23,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-08-18 20:17:23,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 158 transitions. [2020-08-18 20:17:23,832 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 158 transitions. Word has length 55 [2020-08-18 20:17:23,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:23,833 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 158 transitions. [2020-08-18 20:17:23,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 20:17:23,834 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 158 transitions. [2020-08-18 20:17:23,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-08-18 20:17:23,838 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:23,838 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:23,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 20:17:23,838 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:23,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:23,839 INFO L82 PathProgramCache]: Analyzing trace with hash -908952008, now seen corresponding path program 2 times [2020-08-18 20:17:23,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:23,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961207511] [2020-08-18 20:17:23,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:23,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:24,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,177 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 30 proven. 52 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-08-18 20:17:24,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961207511] [2020-08-18 20:17:24,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:24,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-18 20:17:24,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427153755] [2020-08-18 20:17:24,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 20:17:24,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:24,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 20:17:24,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-18 20:17:24,180 INFO L87 Difference]: Start difference. First operand 100 states and 158 transitions. Second operand 12 states. [2020-08-18 20:17:24,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:24,579 INFO L93 Difference]: Finished difference Result 199 states and 354 transitions. [2020-08-18 20:17:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-18 20:17:24,583 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-08-18 20:17:24,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:24,587 INFO L225 Difference]: With dead ends: 199 [2020-08-18 20:17:24,587 INFO L226 Difference]: Without dead ends: 86 [2020-08-18 20:17:24,589 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 [2020-08-18 20:17:24,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-08-18 20:17:24,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 71. [2020-08-18 20:17:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-08-18 20:17:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 93 transitions. [2020-08-18 20:17:24,601 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 93 transitions. Word has length 82 [2020-08-18 20:17:24,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:24,603 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 93 transitions. [2020-08-18 20:17:24,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 20:17:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 93 transitions. [2020-08-18 20:17:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-08-18 20:17:24,604 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:24,604 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:24,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 20:17:24,605 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:24,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:24,605 INFO L82 PathProgramCache]: Analyzing trace with hash -2119203654, now seen corresponding path program 2 times [2020-08-18 20:17:24,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:24,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909284633] [2020-08-18 20:17:24,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-18 20:17:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:24,885 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 44 proven. 79 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-08-18 20:17:24,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909284633] [2020-08-18 20:17:24,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:24,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 20:17:24,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705923901] [2020-08-18 20:17:24,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 20:17:24,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:24,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 20:17:24,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-18 20:17:24,889 INFO L87 Difference]: Start difference. First operand 71 states and 93 transitions. Second operand 10 states. [2020-08-18 20:17:25,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:25,109 INFO L93 Difference]: Finished difference Result 142 states and 204 transitions. [2020-08-18 20:17:25,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 20:17:25,109 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 110 [2020-08-18 20:17:25,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:25,111 INFO L225 Difference]: With dead ends: 142 [2020-08-18 20:17:25,111 INFO L226 Difference]: Without dead ends: 78 [2020-08-18 20:17:25,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-08-18 20:17:25,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-08-18 20:17:25,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-08-18 20:17:25,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-18 20:17:25,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2020-08-18 20:17:25,126 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 110 [2020-08-18 20:17:25,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:25,127 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2020-08-18 20:17:25,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 20:17:25,127 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2020-08-18 20:17:25,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-08-18 20:17:25,137 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:25,137 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 13, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:25,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-18 20:17:25,138 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:25,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:25,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1263382818, now seen corresponding path program 3 times [2020-08-18 20:17:25,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:25,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690390299] [2020-08-18 20:17:25,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 20:17:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-18 20:17:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:25,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-18 20:17:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:25,682 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 133 proven. 373 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2020-08-18 20:17:25,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690390299] [2020-08-18 20:17:25,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:25,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-18 20:17:25,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843488523] [2020-08-18 20:17:25,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-18 20:17:25,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:25,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-18 20:17:25,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-08-18 20:17:25,685 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand 15 states. [2020-08-18 20:17:26,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:26,348 INFO L93 Difference]: Finished difference Result 184 states and 282 transitions. [2020-08-18 20:17:26,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-18 20:17:26,349 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 192 [2020-08-18 20:17:26,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:26,351 INFO L225 Difference]: With dead ends: 184 [2020-08-18 20:17:26,352 INFO L226 Difference]: Without dead ends: 111 [2020-08-18 20:17:26,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=675, Unknown=0, NotChecked=0, Total=812 [2020-08-18 20:17:26,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-08-18 20:17:26,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2020-08-18 20:17:26,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-08-18 20:17:26,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 133 transitions. [2020-08-18 20:17:26,364 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 133 transitions. Word has length 192 [2020-08-18 20:17:26,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:26,365 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 133 transitions. [2020-08-18 20:17:26,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-18 20:17:26,365 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 133 transitions. [2020-08-18 20:17:26,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-08-18 20:17:26,367 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:26,367 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:26,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-18 20:17:26,368 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:26,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:26,368 INFO L82 PathProgramCache]: Analyzing trace with hash -2102107778, now seen corresponding path program 1 times [2020-08-18 20:17:26,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:26,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193865156] [2020-08-18 20:17:26,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 20:17:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 109 proven. 85 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2020-08-18 20:17:26,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193865156] [2020-08-18 20:17:26,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:26,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 20:17:26,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357788244] [2020-08-18 20:17:26,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 20:17:26,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:26,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 20:17:26,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-08-18 20:17:26,656 INFO L87 Difference]: Start difference. First operand 99 states and 133 transitions. Second operand 11 states. [2020-08-18 20:17:26,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:26,932 INFO L93 Difference]: Finished difference Result 188 states and 266 transitions. [2020-08-18 20:17:26,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-18 20:17:26,933 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-08-18 20:17:26,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:26,935 INFO L225 Difference]: With dead ends: 188 [2020-08-18 20:17:26,935 INFO L226 Difference]: Without dead ends: 101 [2020-08-18 20:17:26,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-08-18 20:17:26,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-08-18 20:17:26,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2020-08-18 20:17:26,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-08-18 20:17:26,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 130 transitions. [2020-08-18 20:17:26,950 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 130 transitions. Word has length 136 [2020-08-18 20:17:26,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:26,951 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 130 transitions. [2020-08-18 20:17:26,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 20:17:26,951 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 130 transitions. [2020-08-18 20:17:26,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-18 20:17:26,956 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:26,956 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:26,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-18 20:17:26,957 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:26,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:26,957 INFO L82 PathProgramCache]: Analyzing trace with hash 677703633, now seen corresponding path program 2 times [2020-08-18 20:17:26,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:26,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369924385] [2020-08-18 20:17:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-18 20:17:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:27,485 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 138 proven. 250 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2020-08-18 20:17:27,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369924385] [2020-08-18 20:17:27,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:27,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-18 20:17:27,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444844964] [2020-08-18 20:17:27,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-18 20:17:27,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:27,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-18 20:17:27,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-18 20:17:27,489 INFO L87 Difference]: Start difference. First operand 98 states and 130 transitions. Second operand 14 states. [2020-08-18 20:17:28,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:28,072 INFO L93 Difference]: Finished difference Result 224 states and 343 transitions. [2020-08-18 20:17:28,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-18 20:17:28,072 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 177 [2020-08-18 20:17:28,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:28,075 INFO L225 Difference]: With dead ends: 224 [2020-08-18 20:17:28,075 INFO L226 Difference]: Without dead ends: 131 [2020-08-18 20:17:28,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2020-08-18 20:17:28,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-08-18 20:17:28,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 114. [2020-08-18 20:17:28,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-08-18 20:17:28,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 154 transitions. [2020-08-18 20:17:28,086 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 154 transitions. Word has length 177 [2020-08-18 20:17:28,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:28,086 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 154 transitions. [2020-08-18 20:17:28,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-18 20:17:28,087 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 154 transitions. [2020-08-18 20:17:28,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-18 20:17:28,089 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:28,089 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, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:28,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-18 20:17:28,089 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:28,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:28,090 INFO L82 PathProgramCache]: Analyzing trace with hash 307857833, now seen corresponding path program 3 times [2020-08-18 20:17:28,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:28,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421612590] [2020-08-18 20:17:28,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,408 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 45 proven. 260 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-08-18 20:17:28,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [421612590] [2020-08-18 20:17:28,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:28,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 20:17:28,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259658271] [2020-08-18 20:17:28,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 20:17:28,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:28,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 20:17:28,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-08-18 20:17:28,410 INFO L87 Difference]: Start difference. First operand 114 states and 154 transitions. Second operand 11 states. [2020-08-18 20:17:28,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:28,708 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2020-08-18 20:17:28,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 20:17:28,709 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 177 [2020-08-18 20:17:28,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:28,713 INFO L225 Difference]: With dead ends: 244 [2020-08-18 20:17:28,713 INFO L226 Difference]: Without dead ends: 240 [2020-08-18 20:17:28,714 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 [2020-08-18 20:17:28,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-08-18 20:17:28,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 220. [2020-08-18 20:17:28,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-08-18 20:17:28,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 331 transitions. [2020-08-18 20:17:28,731 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 331 transitions. Word has length 177 [2020-08-18 20:17:28,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:28,731 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 331 transitions. [2020-08-18 20:17:28,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 20:17:28,732 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 331 transitions. [2020-08-18 20:17:28,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-08-18 20:17:28,738 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:28,738 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 26, 26, 22, 21, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 8, 8, 8, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:28,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-18 20:17:28,739 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:28,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:28,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1635105538, now seen corresponding path program 4 times [2020-08-18 20:17:28,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:28,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110892430] [2020-08-18 20:17:28,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:28,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 20:17:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-08-18 20:17:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:29,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 20:17:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4041 backedges. 201 proven. 576 refuted. 0 times theorem prover too weak. 3264 trivial. 0 not checked. [2020-08-18 20:17:29,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110892430] [2020-08-18 20:17:29,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:29,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 20:17:29,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722996253] [2020-08-18 20:17:29,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 20:17:29,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:29,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 20:17:29,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-08-18 20:17:29,502 INFO L87 Difference]: Start difference. First operand 220 states and 331 transitions. Second operand 11 states. [2020-08-18 20:17:29,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:29,808 INFO L93 Difference]: Finished difference Result 429 states and 677 transitions. [2020-08-18 20:17:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 20:17:29,809 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 380 [2020-08-18 20:17:29,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:29,813 INFO L225 Difference]: With dead ends: 429 [2020-08-18 20:17:29,813 INFO L226 Difference]: Without dead ends: 225 [2020-08-18 20:17:29,815 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 [2020-08-18 20:17:29,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-08-18 20:17:29,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 222. [2020-08-18 20:17:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-08-18 20:17:29,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 316 transitions. [2020-08-18 20:17:29,831 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 316 transitions. Word has length 380 [2020-08-18 20:17:29,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:29,832 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 316 transitions. [2020-08-18 20:17:29,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 20:17:29,832 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 316 transitions. [2020-08-18 20:17:29,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-08-18 20:17:29,835 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:29,836 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 13, 12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:29,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-18 20:17:29,836 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:29,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:29,836 INFO L82 PathProgramCache]: Analyzing trace with hash 657587316, now seen corresponding path program 5 times [2020-08-18 20:17:29,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:29,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2127887055] [2020-08-18 20:17:29,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:29,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-08-18 20:17:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:30,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 200 proven. 324 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2020-08-18 20:17:30,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2127887055] [2020-08-18 20:17:30,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:30,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-18 20:17:30,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25587877] [2020-08-18 20:17:30,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-18 20:17:30,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:30,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-18 20:17:30,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-18 20:17:30,351 INFO L87 Difference]: Start difference. First operand 222 states and 316 transitions. Second operand 14 states. [2020-08-18 20:17:30,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:30,986 INFO L93 Difference]: Finished difference Result 454 states and 689 transitions. [2020-08-18 20:17:30,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-18 20:17:30,987 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 218 [2020-08-18 20:17:30,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:30,996 INFO L225 Difference]: With dead ends: 454 [2020-08-18 20:17:30,996 INFO L226 Difference]: Without dead ends: 246 [2020-08-18 20:17:31,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2020-08-18 20:17:31,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-08-18 20:17:31,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 228. [2020-08-18 20:17:31,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-08-18 20:17:31,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 324 transitions. [2020-08-18 20:17:31,029 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 324 transitions. Word has length 218 [2020-08-18 20:17:31,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:31,030 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 324 transitions. [2020-08-18 20:17:31,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-18 20:17:31,030 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 324 transitions. [2020-08-18 20:17:31,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-08-18 20:17:31,035 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:31,035 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 17, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:31,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-18 20:17:31,035 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:31,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:31,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1614185823, now seen corresponding path program 6 times [2020-08-18 20:17:31,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:31,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289674639] [2020-08-18 20:17:31,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:31,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:31,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 94 proven. 558 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2020-08-18 20:17:31,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289674639] [2020-08-18 20:17:31,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:31,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-18 20:17:31,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970426982] [2020-08-18 20:17:31,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 20:17:31,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:31,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 20:17:31,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-08-18 20:17:31,715 INFO L87 Difference]: Start difference. First operand 228 states and 324 transitions. Second operand 12 states. [2020-08-18 20:17:32,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:32,090 INFO L93 Difference]: Finished difference Result 487 states and 755 transitions. [2020-08-18 20:17:32,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-18 20:17:32,091 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 286 [2020-08-18 20:17:32,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:32,111 INFO L225 Difference]: With dead ends: 487 [2020-08-18 20:17:32,111 INFO L226 Difference]: Without dead ends: 483 [2020-08-18 20:17:32,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2020-08-18 20:17:32,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-08-18 20:17:32,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 463. [2020-08-18 20:17:32,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-08-18 20:17:32,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 717 transitions. [2020-08-18 20:17:32,156 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 717 transitions. Word has length 286 [2020-08-18 20:17:32,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:32,157 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 717 transitions. [2020-08-18 20:17:32,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 20:17:32,157 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 717 transitions. [2020-08-18 20:17:32,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-08-18 20:17:32,166 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:32,166 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 24, 22, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 8, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:32,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-18 20:17:32,167 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:32,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:32,167 INFO L82 PathProgramCache]: Analyzing trace with hash 2114796199, now seen corresponding path program 7 times [2020-08-18 20:17:32,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:32,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866814359] [2020-08-18 20:17:32,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-08-18 20:17:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-08-18 20:17:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:32,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:32,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:32,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4371 backedges. 289 proven. 900 refuted. 0 times theorem prover too weak. 3182 trivial. 0 not checked. [2020-08-18 20:17:33,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866814359] [2020-08-18 20:17:33,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:33,249 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-18 20:17:33,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958769288] [2020-08-18 20:17:33,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-18 20:17:33,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:33,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-18 20:17:33,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-18 20:17:33,254 INFO L87 Difference]: Start difference. First operand 463 states and 717 transitions. Second operand 14 states. [2020-08-18 20:17:33,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:33,708 INFO L93 Difference]: Finished difference Result 978 states and 1610 transitions. [2020-08-18 20:17:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-18 20:17:33,709 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 395 [2020-08-18 20:17:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:33,716 INFO L225 Difference]: With dead ends: 978 [2020-08-18 20:17:33,716 INFO L226 Difference]: Without dead ends: 529 [2020-08-18 20:17:33,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2020-08-18 20:17:33,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2020-08-18 20:17:33,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 502. [2020-08-18 20:17:33,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-08-18 20:17:33,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 738 transitions. [2020-08-18 20:17:33,754 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 738 transitions. Word has length 395 [2020-08-18 20:17:33,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:33,754 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 738 transitions. [2020-08-18 20:17:33,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-18 20:17:33,755 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 738 transitions. [2020-08-18 20:17:33,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2020-08-18 20:17:33,778 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:33,778 INFO L422 BasicCegarLoop]: trace histogram [49, 49, 48, 48, 40, 38, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 16, 14, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:33,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-18 20:17:33,778 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:33,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:33,779 INFO L82 PathProgramCache]: Analyzing trace with hash -85106141, now seen corresponding path program 8 times [2020-08-18 20:17:33,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:33,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202382804] [2020-08-18 20:17:33,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-18 20:17:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:34,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-18 20:17:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 12907 backedges. 478 proven. 2018 refuted. 0 times theorem prover too weak. 10411 trivial. 0 not checked. [2020-08-18 20:17:35,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202382804] [2020-08-18 20:17:35,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:35,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-18 20:17:35,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444128201] [2020-08-18 20:17:35,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-18 20:17:35,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:35,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-18 20:17:35,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-08-18 20:17:35,971 INFO L87 Difference]: Start difference. First operand 502 states and 738 transitions. Second operand 16 states. [2020-08-18 20:17:36,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:36,636 INFO L93 Difference]: Finished difference Result 1138 states and 1852 transitions. [2020-08-18 20:17:36,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-18 20:17:36,637 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 667 [2020-08-18 20:17:36,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:36,648 INFO L225 Difference]: With dead ends: 1138 [2020-08-18 20:17:36,648 INFO L226 Difference]: Without dead ends: 650 [2020-08-18 20:17:36,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2020-08-18 20:17:36,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2020-08-18 20:17:36,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 570. [2020-08-18 20:17:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2020-08-18 20:17:36,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 855 transitions. [2020-08-18 20:17:36,709 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 855 transitions. Word has length 667 [2020-08-18 20:17:36,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:36,710 INFO L479 AbstractCegarLoop]: Abstraction has 570 states and 855 transitions. [2020-08-18 20:17:36,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-18 20:17:36,710 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 855 transitions. [2020-08-18 20:17:36,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2020-08-18 20:17:36,717 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:36,717 INFO L422 BasicCegarLoop]: trace histogram [53, 53, 50, 50, 42, 41, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 16, 16, 12, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:36,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-18 20:17:36,718 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:36,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:36,718 INFO L82 PathProgramCache]: Analyzing trace with hash 792643710, now seen corresponding path program 9 times [2020-08-18 20:17:36,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:36,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259354017] [2020-08-18 20:17:36,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:37,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-18 20:17:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:38,928 INFO L134 CoverageAnalysis]: Checked inductivity of 14593 backedges. 618 proven. 2526 refuted. 0 times theorem prover too weak. 11449 trivial. 0 not checked. [2020-08-18 20:17:38,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259354017] [2020-08-18 20:17:38,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:38,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-18 20:17:38,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405863641] [2020-08-18 20:17:38,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-18 20:17:38,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:38,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-18 20:17:38,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-08-18 20:17:38,931 INFO L87 Difference]: Start difference. First operand 570 states and 855 transitions. Second operand 18 states. [2020-08-18 20:17:40,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:40,047 INFO L93 Difference]: Finished difference Result 1028 states and 1719 transitions. [2020-08-18 20:17:40,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-08-18 20:17:40,054 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 708 [2020-08-18 20:17:40,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:40,061 INFO L225 Difference]: With dead ends: 1028 [2020-08-18 20:17:40,062 INFO L226 Difference]: Without dead ends: 456 [2020-08-18 20:17:40,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=250, Invalid=1472, Unknown=0, NotChecked=0, Total=1722 [2020-08-18 20:17:40,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-08-18 20:17:40,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 371. [2020-08-18 20:17:40,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 371 states. [2020-08-18 20:17:40,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 534 transitions. [2020-08-18 20:17:40,103 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 534 transitions. Word has length 708 [2020-08-18 20:17:40,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:40,105 INFO L479 AbstractCegarLoop]: Abstraction has 371 states and 534 transitions. [2020-08-18 20:17:40,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-18 20:17:40,105 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 534 transitions. [2020-08-18 20:17:40,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-08-18 20:17:40,108 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:40,108 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, 9, 9, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:40,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-08-18 20:17:40,109 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:40,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:40,109 INFO L82 PathProgramCache]: Analyzing trace with hash 634662915, now seen corresponding path program 10 times [2020-08-18 20:17:40,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:40,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134429415] [2020-08-18 20:17:40,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-18 20:17:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:40,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:41,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 694 proven. 802 refuted. 0 times theorem prover too weak. 2874 trivial. 0 not checked. [2020-08-18 20:17:41,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134429415] [2020-08-18 20:17:41,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:41,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-18 20:17:41,165 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026590396] [2020-08-18 20:17:41,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-18 20:17:41,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:41,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-18 20:17:41,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-08-18 20:17:41,167 INFO L87 Difference]: Start difference. First operand 371 states and 534 transitions. Second operand 18 states. [2020-08-18 20:17:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:42,215 INFO L93 Difference]: Finished difference Result 819 states and 1289 transitions. [2020-08-18 20:17:42,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-08-18 20:17:42,218 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 395 [2020-08-18 20:17:42,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:42,228 INFO L225 Difference]: With dead ends: 819 [2020-08-18 20:17:42,228 INFO L226 Difference]: Without dead ends: 462 [2020-08-18 20:17:42,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2020-08-18 20:17:42,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-08-18 20:17:42,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 395. [2020-08-18 20:17:42,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-08-18 20:17:42,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 579 transitions. [2020-08-18 20:17:42,273 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 579 transitions. Word has length 395 [2020-08-18 20:17:42,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:42,274 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 579 transitions. [2020-08-18 20:17:42,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-18 20:17:42,275 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 579 transitions. [2020-08-18 20:17:42,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2020-08-18 20:17:42,281 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:42,281 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 34, 33, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 14, 12, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:42,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-08-18 20:17:42,282 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:42,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:42,282 INFO L82 PathProgramCache]: Analyzing trace with hash 2122481566, now seen corresponding path program 11 times [2020-08-18 20:17:42,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:42,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [896695596] [2020-08-18 20:17:42,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:42,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-18 20:17:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:43,921 INFO L134 CoverageAnalysis]: Checked inductivity of 9413 backedges. 913 proven. 1781 refuted. 0 times theorem prover too weak. 6719 trivial. 0 not checked. [2020-08-18 20:17:43,921 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [896695596] [2020-08-18 20:17:43,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:43,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-08-18 20:17:43,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162864962] [2020-08-18 20:17:43,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-08-18 20:17:43,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:43,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-08-18 20:17:43,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-08-18 20:17:43,935 INFO L87 Difference]: Start difference. First operand 395 states and 579 transitions. Second operand 20 states. [2020-08-18 20:17:45,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:45,287 INFO L93 Difference]: Finished difference Result 662 states and 1053 transitions. [2020-08-18 20:17:45,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-18 20:17:45,288 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 572 [2020-08-18 20:17:45,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:45,292 INFO L225 Difference]: With dead ends: 662 [2020-08-18 20:17:45,293 INFO L226 Difference]: Without dead ends: 230 [2020-08-18 20:17:45,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=333, Invalid=2117, Unknown=0, NotChecked=0, Total=2450 [2020-08-18 20:17:45,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-08-18 20:17:45,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 183. [2020-08-18 20:17:45,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-08-18 20:17:45,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 260 transitions. [2020-08-18 20:17:45,314 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 260 transitions. Word has length 572 [2020-08-18 20:17:45,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:45,315 INFO L479 AbstractCegarLoop]: Abstraction has 183 states and 260 transitions. [2020-08-18 20:17:45,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-08-18 20:17:45,315 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 260 transitions. [2020-08-18 20:17:45,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2020-08-18 20:17:45,321 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:45,321 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:45,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-08-18 20:17:45,322 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:45,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:45,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1326629730, now seen corresponding path program 12 times [2020-08-18 20:17:45,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:45,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357431732] [2020-08-18 20:17:45,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:45,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:45,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:45,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:46,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:46,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-18 20:17:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:47,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:48,303 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2020-08-18 20:17:48,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357431732] [2020-08-18 20:17:48,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:48,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-08-18 20:17:48,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801157799] [2020-08-18 20:17:48,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-08-18 20:17:48,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:48,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-08-18 20:17:48,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2020-08-18 20:17:48,306 INFO L87 Difference]: Start difference. First operand 183 states and 260 transitions. Second operand 40 states. [2020-08-18 20:17:49,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:49,632 INFO L93 Difference]: Finished difference Result 194 states and 279 transitions. [2020-08-18 20:17:49,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-08-18 20:17:49,633 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 463 [2020-08-18 20:17:49,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:49,635 INFO L225 Difference]: With dead ends: 194 [2020-08-18 20:17:49,636 INFO L226 Difference]: Without dead ends: 190 [2020-08-18 20:17:49,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2020-08-18 20:17:49,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-08-18 20:17:49,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 186. [2020-08-18 20:17:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-08-18 20:17:49,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 267 transitions. [2020-08-18 20:17:49,650 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 267 transitions. Word has length 463 [2020-08-18 20:17:49,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:49,650 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 267 transitions. [2020-08-18 20:17:49,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-08-18 20:17:49,651 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 267 transitions. [2020-08-18 20:17:49,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2020-08-18 20:17:49,654 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:49,655 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 35, 35, 30, 29, 19, 19, 19, 19, 19, 19, 19, 17, 17, 17, 17, 17, 17, 17, 13, 10, 8, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:49,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-08-18 20:17:49,655 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:49,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:49,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1638954211, now seen corresponding path program 13 times [2020-08-18 20:17:49,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:49,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241182098] [2020-08-18 20:17:49,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:49,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:49,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-18 20:17:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:50,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:50,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 7261 backedges. 1340 proven. 1409 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2020-08-18 20:17:51,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241182098] [2020-08-18 20:17:51,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:51,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-08-18 20:17:51,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097914347] [2020-08-18 20:17:51,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-08-18 20:17:51,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:51,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-08-18 20:17:51,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2020-08-18 20:17:51,085 INFO L87 Difference]: Start difference. First operand 186 states and 267 transitions. Second operand 24 states. [2020-08-18 20:17:52,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:17:52,534 INFO L93 Difference]: Finished difference Result 444 states and 739 transitions. [2020-08-18 20:17:52,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-08-18 20:17:52,535 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 504 [2020-08-18 20:17:52,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:17:52,540 INFO L225 Difference]: With dead ends: 444 [2020-08-18 20:17:52,542 INFO L226 Difference]: Without dead ends: 271 [2020-08-18 20:17:52,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1009 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=505, Invalid=3035, Unknown=0, NotChecked=0, Total=3540 [2020-08-18 20:17:52,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-08-18 20:17:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 209. [2020-08-18 20:17:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-08-18 20:17:52,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 302 transitions. [2020-08-18 20:17:52,564 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 302 transitions. Word has length 504 [2020-08-18 20:17:52,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:17:52,565 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 302 transitions. [2020-08-18 20:17:52,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-08-18 20:17:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 302 transitions. [2020-08-18 20:17:52,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1499 [2020-08-18 20:17:52,594 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 20:17:52,595 INFO L422 BasicCegarLoop]: trace histogram [112, 112, 107, 107, 89, 88, 56, 56, 56, 56, 56, 56, 56, 53, 53, 53, 53, 53, 53, 53, 36, 32, 23, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 20:17:52,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-08-18 20:17:52,596 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 20:17:52,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 20:17:52,596 INFO L82 PathProgramCache]: Analyzing trace with hash 392998532, now seen corresponding path program 14 times [2020-08-18 20:17:52,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 20:17:52,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818242723] [2020-08-18 20:17:52,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 20:17:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:54,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 20:17:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:54,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-18 20:17:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:54,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-18 20:17:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:55,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-08-18 20:17:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-18 20:17:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:56,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:56,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 922 [2020-08-18 20:17:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-18 20:17:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:57,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-18 20:17:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-18 20:17:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-08-18 20:17:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 20:17:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 20:17:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-18 20:17:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 20:17:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:57,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 20:17:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 20:17:59,730 INFO L134 CoverageAnalysis]: Checked inductivity of 66964 backedges. 2132 proven. 7251 refuted. 0 times theorem prover too weak. 57581 trivial. 0 not checked. [2020-08-18 20:17:59,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818242723] [2020-08-18 20:17:59,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 20:17:59,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-08-18 20:17:59,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189607150] [2020-08-18 20:17:59,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-18 20:17:59,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 20:17:59,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-18 20:17:59,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2020-08-18 20:17:59,733 INFO L87 Difference]: Start difference. First operand 209 states and 302 transitions. Second operand 22 states. [2020-08-18 20:18:00,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 20:18:00,682 INFO L93 Difference]: Finished difference Result 316 states and 471 transitions. [2020-08-18 20:18:00,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-08-18 20:18:00,687 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 1498 [2020-08-18 20:18:00,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 20:18:00,688 INFO L225 Difference]: With dead ends: 316 [2020-08-18 20:18:00,688 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 20:18:00,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=319, Invalid=1751, Unknown=0, NotChecked=0, Total=2070 [2020-08-18 20:18:00,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 20:18:00,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 20:18:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 20:18:00,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 20:18:00,691 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1498 [2020-08-18 20:18:00,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 20:18:00,697 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 20:18:00,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-18 20:18:00,697 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 20:18:00,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 20:18:00,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-08-18 20:18:00,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 20:18:02,842 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 10 [2020-08-18 20:18:03,428 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 37 [2020-08-18 20:18:03,654 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 11 [2020-08-18 20:18:04,142 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 38 [2020-08-18 20:18:04,147 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-18 20:18:04,147 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 20:18:04,147 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 20:18:04,147 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-18 20:18:04,147 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 20:18:04,147 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 20:18:04,148 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) no Hoare annotation was computed. [2020-08-18 20:18:04,148 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 35 42) the Hoare annotation is: true [2020-08-18 20:18:04,148 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 35 42) no Hoare annotation was computed. [2020-08-18 20:18:04,148 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 35 42) no Hoare annotation was computed. [2020-08-18 20:18:04,148 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-08-18 20:18:04,148 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-08-18 20:18:04,149 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= 8 main_~x~0) (<= main_~x~0 8)) [2020-08-18 20:18:04,149 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-08-18 20:18:04,149 INFO L268 CegarLoopResult]: For program point L38-2(lines 38 40) no Hoare annotation was computed. [2020-08-18 20:18:04,149 INFO L271 CegarLoopResult]: At program point fibo2ENTRY(lines 17 25) the Hoare annotation is: true [2020-08-18 20:18:04,149 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (or (not (<= |fibo2_#in~n| 7)) (= fibo2_~n |fibo2_#in~n|)) (<= 2 |fibo2_#in~n|)) [2020-08-18 20:18:04,150 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-08-18 20:18:04,150 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (and (or (and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|) (<= 2 |fibo2_#in~n|)) (not (<= |fibo2_#in~n| 3))) (or (and (<= 2 |fibo2_#t~ret2|) (<= |fibo2_#in~n| 4) (<= |fibo2_#t~ret2| 2)) (not (<= 3 |fibo2_#in~n|)) (not (<= |fibo2_#in~n| 5))) (let ((.cse0 (= fibo2_~n |fibo2_#in~n|))) (or (and .cse0 (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8)) (not (<= |fibo2_#in~n| 7)) (and (<= |fibo2_#in~n| 6) .cse0)))) [2020-08-18 20:18:04,150 INFO L268 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2020-08-18 20:18:04,150 INFO L268 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed. [2020-08-18 20:18:04,151 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-08-18 20:18:04,151 INFO L268 CegarLoopResult]: For program point fibo2FINAL(lines 17 25) no Hoare annotation was computed. [2020-08-18 20:18:04,151 INFO L268 CegarLoopResult]: For program point fibo2EXIT(lines 17 25) no Hoare annotation was computed. [2020-08-18 20:18:04,151 INFO L271 CegarLoopResult]: At program point fibo1ENTRY(lines 7 15) the Hoare annotation is: true [2020-08-18 20:18:04,151 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (or (not (<= |fibo1_#in~n| 8)) (= fibo1_~n |fibo1_#in~n|)) (not (<= |fibo1_#in~n| 2))) [2020-08-18 20:18:04,151 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-08-18 20:18:04,152 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (and (or (and (<= |fibo1_#t~ret0| 1) (<= 1 |fibo1_#t~ret0|) (<= fibo1_~n 3)) (not (<= |fibo1_#in~n| 4))) (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (or (not (<= |fibo1_#in~n| 8)) (and .cse0 (<= |fibo1_#in~n| 7)) (and (<= 13 |fibo1_#t~ret0|) .cse0 (<= |fibo1_#t~ret0| 13)))) (or (not (<= |fibo1_#in~n| 6)) (and (<= 5 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 5)) (<= fibo1_~n 5)) (not (<= |fibo1_#in~n| 2))) [2020-08-18 20:18:04,152 INFO L268 CegarLoopResult]: For program point fibo1FINAL(lines 7 15) no Hoare annotation was computed. [2020-08-18 20:18:04,152 INFO L268 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-08-18 20:18:04,152 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-08-18 20:18:04,152 INFO L268 CegarLoopResult]: For program point L8(lines 8 14) no Hoare annotation was computed. [2020-08-18 20:18:04,152 INFO L268 CegarLoopResult]: For program point fibo1EXIT(lines 7 15) no Hoare annotation was computed. [2020-08-18 20:18:04,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 08:18:04 BoogieIcfgContainer [2020-08-18 20:18:04,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 20:18:04,161 INFO L168 Benchmark]: Toolchain (without parser) took 44213.19 ms. Allocated memory was 138.9 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 102.6 MB in the beginning and 769.7 MB in the end (delta: -667.1 MB). Peak memory consumption was 947.7 MB. Max. memory is 7.1 GB. [2020-08-18 20:18:04,162 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 20:18:04,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.98 ms. Allocated memory is still 138.9 MB. Free memory was 102.4 MB in the beginning and 92.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-08-18 20:18:04,163 INFO L168 Benchmark]: Boogie Preprocessor took 114.39 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 92.8 MB in the beginning and 179.9 MB in the end (delta: -87.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-08-18 20:18:04,164 INFO L168 Benchmark]: RCFGBuilder took 301.87 ms. Allocated memory is still 200.8 MB. Free memory was 179.9 MB in the beginning and 166.1 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2020-08-18 20:18:04,164 INFO L168 Benchmark]: TraceAbstraction took 43508.28 ms. Allocated memory was 200.8 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 165.4 MB in the beginning and 769.7 MB in the end (delta: -604.3 MB). Peak memory consumption was 948.6 MB. Max. memory is 7.1 GB. [2020-08-18 20:18:04,167 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 282.98 ms. Allocated memory is still 138.9 MB. Free memory was 102.4 MB in the beginning and 92.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.39 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 92.8 MB in the beginning and 179.9 MB in the end (delta: -87.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 301.87 ms. Allocated memory is still 200.8 MB. Free memory was 179.9 MB in the beginning and 166.1 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43508.28 ms. Allocated memory was 200.8 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 165.4 MB in the beginning and 769.7 MB in the end (delta: -604.3 MB). Peak memory consumption was 948.6 MB. 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 39.9s, OverallIterations: 26, TraceHistogramMax: 112, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 925 SDtfs, 1273 SDslu, 8136 SDs, 0 SdLazy, 9517 SolverSat, 1065 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2855 GetRequests, 2296 SyntacticMatches, 0 SemanticMatches, 559 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3434 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=570occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 26 MinimizatonAttempts, 507 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 2432 PreInvPairs, 4029 NumberOfFragments, 152 HoareAnnotationTreeSize, 2432 FomulaSimplifications, 27589 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 11 FomulaSimplificationsInter, 26534 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 22.0s InterpolantComputationTime, 7269 NumberOfCodeBlocks, 7269 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 7243 ConstructedInterpolants, 0 QuantifiedInterpolants, 6543535 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 2 PerfectInterpolantSequences, 115709/137024 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...