/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:05:25,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:05:25,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:05:25,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 05:05:26,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:05:26,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:05:26,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:05:26,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:05:26,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:05:26,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:05:26,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:05:26,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:05:26,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:05:26,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:05:26,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:05:26,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:05:26,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 05:05:26,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:05:26,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:05:26,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:05:26,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:05:26,048 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:05:26,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:05:26,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:05:26,051 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:05:26,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:05:26,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:05:26,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:05:26,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:05:26,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:05:26,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:05:26,053 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:05:26,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:05:26,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:05:26,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:05:26,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:05:26,054 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:05:26,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:05:26,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:05:26,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:05:26,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:05:26,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:05:26,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:05:26,056 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:05:26,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:05:26,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:05:26,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:05:26,466 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:05:26,467 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:05:26,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-11-07 05:05:26,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7257bdb/c2d80b2b9056418e99fd421997b60f80/FLAG69a1872ac [2020-11-07 05:05:27,264 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:05:27,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-11-07 05:05:27,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7257bdb/c2d80b2b9056418e99fd421997b60f80/FLAG69a1872ac [2020-11-07 05:05:27,610 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f7257bdb/c2d80b2b9056418e99fd421997b60f80 [2020-11-07 05:05:27,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:05:27,622 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:05:27,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:05:27,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:05:27,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:05:27,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:05:27" (1/1) ... [2020-11-07 05:05:27,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1ea5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:27, skipping insertion in model container [2020-11-07 05:05:27,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:05:27" (1/1) ... [2020-11-07 05:05:27,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:05:27,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:05:27,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:05:27,829 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:05:27,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:05:27,865 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:05:27,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:27 WrapperNode [2020-11-07 05:05:27,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:05:27,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:05:27,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:05:27,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:05:27,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:27" (1/1) ... [2020-11-07 05:05:27,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:27" (1/1) ... [2020-11-07 05:05:27,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:27" (1/1) ... [2020-11-07 05:05:27,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:27" (1/1) ... [2020-11-07 05:05:27,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:27" (1/1) ... [2020-11-07 05:05:27,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:27" (1/1) ... [2020-11-07 05:05:27,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:27" (1/1) ... [2020-11-07 05:05:27,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:05:27,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:05:27,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:05:27,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:05:27,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:05:27,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:05:27,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:05:27,976 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:05:27,976 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-11-07 05:05:27,976 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-11-07 05:05:27,977 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:05:27,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:05:27,977 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:05:27,977 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:05:27,977 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:05:27,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:05:27,978 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-11-07 05:05:27,978 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-11-07 05:05:27,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:05:27,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:05:27,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:05:27,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:05:27,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:05:27,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:05:27,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:05:28,355 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:05:28,357 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 05:05:28,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:05:28 BoogieIcfgContainer [2020-11-07 05:05:28,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:05:28,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:05:28,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:05:28,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:05:28,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:05:27" (1/3) ... [2020-11-07 05:05:28,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bb7a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:05:28, skipping insertion in model container [2020-11-07 05:05:28,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:27" (2/3) ... [2020-11-07 05:05:28,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37bb7a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:05:28, skipping insertion in model container [2020-11-07 05:05:28,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:05:28" (3/3) ... [2020-11-07 05:05:28,385 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2020-11-07 05:05:28,404 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:05:28,408 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:05:28,423 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:05:28,452 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:05:28,452 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:05:28,452 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:05:28,453 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:05:28,453 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:05:28,453 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:05:28,453 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:05:28,453 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:05:28,472 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2020-11-07 05:05:28,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-07 05:05:28,485 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:28,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:28,487 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:28,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:28,501 INFO L82 PathProgramCache]: Analyzing trace with hash 775886402, now seen corresponding path program 1 times [2020-11-07 05:05:28,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:28,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730884236] [2020-11-07 05:05:28,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:28,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:28,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:28,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:05:29,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730884236] [2020-11-07 05:05:29,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:05:29,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 05:05:29,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484370640] [2020-11-07 05:05:29,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 05:05:29,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:29,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 05:05:29,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 05:05:29,057 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 6 states. [2020-11-07 05:05:29,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:29,524 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2020-11-07 05:05:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 05:05:29,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-07 05:05:29,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:29,537 INFO L225 Difference]: With dead ends: 71 [2020-11-07 05:05:29,537 INFO L226 Difference]: Without dead ends: 51 [2020-11-07 05:05:29,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:05:29,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-07 05:05:29,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-07 05:05:29,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-07 05:05:29,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2020-11-07 05:05:29,604 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 25 [2020-11-07 05:05:29,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:29,605 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2020-11-07 05:05:29,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 05:05:29,605 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2020-11-07 05:05:29,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-07 05:05:29,608 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:29,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:29,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:05:29,609 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:29,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:29,610 INFO L82 PathProgramCache]: Analyzing trace with hash 478831265, now seen corresponding path program 1 times [2020-11-07 05:05:29,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:29,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392116116] [2020-11-07 05:05:29,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:29,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:29,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:29,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:05:29,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392116116] [2020-11-07 05:05:29,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:05:29,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 05:05:29,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171024] [2020-11-07 05:05:29,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 05:05:29,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:29,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 05:05:29,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 05:05:29,731 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 6 states. [2020-11-07 05:05:30,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:30,031 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2020-11-07 05:05:30,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 05:05:30,032 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-11-07 05:05:30,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:30,034 INFO L225 Difference]: With dead ends: 60 [2020-11-07 05:05:30,034 INFO L226 Difference]: Without dead ends: 53 [2020-11-07 05:05:30,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:05:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-11-07 05:05:30,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2020-11-07 05:05:30,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-07 05:05:30,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2020-11-07 05:05:30,054 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 26 [2020-11-07 05:05:30,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:30,054 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2020-11-07 05:05:30,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 05:05:30,055 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2020-11-07 05:05:30,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-11-07 05:05:30,057 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:30,057 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:30,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:05:30,058 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:30,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:30,059 INFO L82 PathProgramCache]: Analyzing trace with hash -708858972, now seen corresponding path program 1 times [2020-11-07 05:05:30,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:30,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85121970] [2020-11-07 05:05:30,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:30,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:30,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:30,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:30,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-07 05:05:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:30,291 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 05:05:30,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85121970] [2020-11-07 05:05:30,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:30,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:05:30,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965962102] [2020-11-07 05:05:30,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:05:30,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:30,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:05:30,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:05:30,297 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 7 states. [2020-11-07 05:05:30,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:30,742 INFO L93 Difference]: Finished difference Result 92 states and 112 transitions. [2020-11-07 05:05:30,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 05:05:30,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 42 [2020-11-07 05:05:30,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:30,745 INFO L225 Difference]: With dead ends: 92 [2020-11-07 05:05:30,745 INFO L226 Difference]: Without dead ends: 55 [2020-11-07 05:05:30,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-11-07 05:05:30,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-07 05:05:30,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-11-07 05:05:30,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-11-07 05:05:30,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2020-11-07 05:05:30,764 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 42 [2020-11-07 05:05:30,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:30,764 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2020-11-07 05:05:30,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:05:30,765 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2020-11-07 05:05:30,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-11-07 05:05:30,767 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:30,767 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:30,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:05:30,767 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:30,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:30,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1629720462, now seen corresponding path program 1 times [2020-11-07 05:05:30,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:30,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989829298] [2020-11-07 05:05:30,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:30,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:30,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:30,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:30,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:30,944 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 05:05:30,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989829298] [2020-11-07 05:05:30,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:30,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:05:30,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431203239] [2020-11-07 05:05:30,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:05:30,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:30,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:05:30,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:05:30,948 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand 8 states. [2020-11-07 05:05:31,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:31,593 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2020-11-07 05:05:31,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 05:05:31,593 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2020-11-07 05:05:31,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:31,596 INFO L225 Difference]: With dead ends: 84 [2020-11-07 05:05:31,596 INFO L226 Difference]: Without dead ends: 77 [2020-11-07 05:05:31,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-11-07 05:05:31,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-11-07 05:05:31,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2020-11-07 05:05:31,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-11-07 05:05:31,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2020-11-07 05:05:31,621 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 43 [2020-11-07 05:05:31,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:31,621 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2020-11-07 05:05:31,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:05:31,622 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2020-11-07 05:05:31,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-11-07 05:05:31,625 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:31,625 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:31,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 05:05:31,625 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:31,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:31,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1688308117, now seen corresponding path program 1 times [2020-11-07 05:05:31,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:31,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826380700] [2020-11-07 05:05:31,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:31,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:31,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:31,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:31,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:31,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-11-07 05:05:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:31,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-07 05:05:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:31,799 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-07 05:05:31,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826380700] [2020-11-07 05:05:31,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:31,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:05:31,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764810612] [2020-11-07 05:05:31,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:05:31,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:31,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:05:31,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:05:31,802 INFO L87 Difference]: Start difference. First operand 75 states and 92 transitions. Second operand 7 states. [2020-11-07 05:05:32,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:32,281 INFO L93 Difference]: Finished difference Result 140 states and 188 transitions. [2020-11-07 05:05:32,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 05:05:32,281 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2020-11-07 05:05:32,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:32,284 INFO L225 Difference]: With dead ends: 140 [2020-11-07 05:05:32,289 INFO L226 Difference]: Without dead ends: 79 [2020-11-07 05:05:32,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-11-07 05:05:32,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-11-07 05:05:32,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-11-07 05:05:32,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-07 05:05:32,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 98 transitions. [2020-11-07 05:05:32,336 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 98 transitions. Word has length 59 [2020-11-07 05:05:32,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:32,337 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 98 transitions. [2020-11-07 05:05:32,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:05:32,337 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 98 transitions. [2020-11-07 05:05:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-11-07 05:05:32,348 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:32,349 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:32,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 05:05:32,352 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:32,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:32,353 INFO L82 PathProgramCache]: Analyzing trace with hash -439427312, now seen corresponding path program 1 times [2020-11-07 05:05:32,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:32,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720452203] [2020-11-07 05:05:32,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:32,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:32,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:32,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:32,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:32,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:32,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-07 05:05:32,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720452203] [2020-11-07 05:05:32,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:32,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:05:32,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862037824] [2020-11-07 05:05:32,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:05:32,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:32,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:05:32,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:05:32,616 INFO L87 Difference]: Start difference. First operand 79 states and 98 transitions. Second operand 8 states. [2020-11-07 05:05:33,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:33,223 INFO L93 Difference]: Finished difference Result 152 states and 207 transitions. [2020-11-07 05:05:33,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 05:05:33,224 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 60 [2020-11-07 05:05:33,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:33,227 INFO L225 Difference]: With dead ends: 152 [2020-11-07 05:05:33,227 INFO L226 Difference]: Without dead ends: 87 [2020-11-07 05:05:33,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-11-07 05:05:33,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-07 05:05:33,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2020-11-07 05:05:33,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-11-07 05:05:33,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 101 transitions. [2020-11-07 05:05:33,265 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 101 transitions. Word has length 60 [2020-11-07 05:05:33,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:33,265 INFO L481 AbstractCegarLoop]: Abstraction has 81 states and 101 transitions. [2020-11-07 05:05:33,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:05:33,265 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 101 transitions. [2020-11-07 05:05:33,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-07 05:05:33,268 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:33,268 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:33,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 05:05:33,269 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:33,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:33,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1841264646, now seen corresponding path program 1 times [2020-11-07 05:05:33,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:33,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [587666461] [2020-11-07 05:05:33,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:33,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:33,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:33,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:33,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:33,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:33,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:33,494 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-07 05:05:33,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [587666461] [2020-11-07 05:05:33,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:33,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-07 05:05:33,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904230085] [2020-11-07 05:05:33,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 05:05:33,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:33,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 05:05:33,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:05:33,497 INFO L87 Difference]: Start difference. First operand 81 states and 101 transitions. Second operand 9 states. [2020-11-07 05:05:34,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:34,310 INFO L93 Difference]: Finished difference Result 128 states and 168 transitions. [2020-11-07 05:05:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:05:34,312 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-11-07 05:05:34,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:34,316 INFO L225 Difference]: With dead ends: 128 [2020-11-07 05:05:34,316 INFO L226 Difference]: Without dead ends: 121 [2020-11-07 05:05:34,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-11-07 05:05:34,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-11-07 05:05:34,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 115. [2020-11-07 05:05:34,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-07 05:05:34,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2020-11-07 05:05:34,354 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 61 [2020-11-07 05:05:34,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:34,355 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2020-11-07 05:05:34,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 05:05:34,355 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2020-11-07 05:05:34,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-07 05:05:34,357 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:34,358 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:34,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 05:05:34,358 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:34,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:34,359 INFO L82 PathProgramCache]: Analyzing trace with hash 942662771, now seen corresponding path program 1 times [2020-11-07 05:05:34,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:34,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580953458] [2020-11-07 05:05:34,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:34,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:34,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:34,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:34,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:34,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:34,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:34,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:34,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-11-07 05:05:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:34,533 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-07 05:05:34,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580953458] [2020-11-07 05:05:34,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:34,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-07 05:05:34,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331076788] [2020-11-07 05:05:34,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 05:05:34,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:34,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 05:05:34,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 05:05:34,536 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand 9 states. [2020-11-07 05:05:35,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:35,166 INFO L93 Difference]: Finished difference Result 237 states and 358 transitions. [2020-11-07 05:05:35,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 05:05:35,168 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-11-07 05:05:35,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:35,171 INFO L225 Difference]: With dead ends: 237 [2020-11-07 05:05:35,171 INFO L226 Difference]: Without dead ends: 136 [2020-11-07 05:05:35,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-11-07 05:05:35,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-11-07 05:05:35,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 124. [2020-11-07 05:05:35,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-07 05:05:35,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 170 transitions. [2020-11-07 05:05:35,211 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 170 transitions. Word has length 78 [2020-11-07 05:05:35,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:35,212 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 170 transitions. [2020-11-07 05:05:35,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 05:05:35,212 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 170 transitions. [2020-11-07 05:05:35,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-11-07 05:05:35,214 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:35,214 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:35,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 05:05:35,215 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:35,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:35,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1118264142, now seen corresponding path program 1 times [2020-11-07 05:05:35,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:35,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778395827] [2020-11-07 05:05:35,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:35,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:35,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:35,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:35,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:35,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:35,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:35,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:35,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:35,488 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-07 05:05:35,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778395827] [2020-11-07 05:05:35,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:35,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 05:05:35,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337736302] [2020-11-07 05:05:35,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:05:35,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:35,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:05:35,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:05:35,498 INFO L87 Difference]: Start difference. First operand 124 states and 170 transitions. Second operand 10 states. [2020-11-07 05:05:36,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:36,256 INFO L93 Difference]: Finished difference Result 267 states and 410 transitions. [2020-11-07 05:05:36,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 05:05:36,259 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 79 [2020-11-07 05:05:36,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:36,263 INFO L225 Difference]: With dead ends: 267 [2020-11-07 05:05:36,263 INFO L226 Difference]: Without dead ends: 160 [2020-11-07 05:05:36,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2020-11-07 05:05:36,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-11-07 05:05:36,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 142. [2020-11-07 05:05:36,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-11-07 05:05:36,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 200 transitions. [2020-11-07 05:05:36,340 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 200 transitions. Word has length 79 [2020-11-07 05:05:36,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:36,342 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 200 transitions. [2020-11-07 05:05:36,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:05:36,342 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 200 transitions. [2020-11-07 05:05:36,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-11-07 05:05:36,346 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:36,346 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:36,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 05:05:36,346 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:36,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:36,347 INFO L82 PathProgramCache]: Analyzing trace with hash 693727952, now seen corresponding path program 1 times [2020-11-07 05:05:36,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:36,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244392390] [2020-11-07 05:05:36,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:36,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:36,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:36,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:36,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:36,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:36,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:36,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:36,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:36,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:36,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:36,634 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 8 proven. 45 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-07 05:05:36,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244392390] [2020-11-07 05:05:36,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:36,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 05:05:36,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895181731] [2020-11-07 05:05:36,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:05:36,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:36,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:05:36,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:05:36,639 INFO L87 Difference]: Start difference. First operand 142 states and 200 transitions. Second operand 10 states. [2020-11-07 05:05:37,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:37,479 INFO L93 Difference]: Finished difference Result 223 states and 325 transitions. [2020-11-07 05:05:37,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 05:05:37,479 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-11-07 05:05:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:37,487 INFO L225 Difference]: With dead ends: 223 [2020-11-07 05:05:37,487 INFO L226 Difference]: Without dead ends: 216 [2020-11-07 05:05:37,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2020-11-07 05:05:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2020-11-07 05:05:37,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 210. [2020-11-07 05:05:37,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-11-07 05:05:37,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 311 transitions. [2020-11-07 05:05:37,560 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 311 transitions. Word has length 96 [2020-11-07 05:05:37,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:37,562 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 311 transitions. [2020-11-07 05:05:37,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:05:37,563 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 311 transitions. [2020-11-07 05:05:37,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-11-07 05:05:37,568 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:37,568 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:37,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 05:05:37,569 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:37,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:37,569 INFO L82 PathProgramCache]: Analyzing trace with hash -375801608, now seen corresponding path program 2 times [2020-11-07 05:05:37,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:37,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1605351569] [2020-11-07 05:05:37,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-11-07 05:05:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:37,903 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 50 proven. 67 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-11-07 05:05:37,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1605351569] [2020-11-07 05:05:37,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:37,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 05:05:37,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525130449] [2020-11-07 05:05:37,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:05:37,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:37,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:05:37,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:05:37,907 INFO L87 Difference]: Start difference. First operand 210 states and 311 transitions. Second operand 10 states. [2020-11-07 05:05:38,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:38,724 INFO L93 Difference]: Finished difference Result 455 states and 768 transitions. [2020-11-07 05:05:38,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 05:05:38,724 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 132 [2020-11-07 05:05:38,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:38,731 INFO L225 Difference]: With dead ends: 455 [2020-11-07 05:05:38,731 INFO L226 Difference]: Without dead ends: 262 [2020-11-07 05:05:38,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2020-11-07 05:05:38,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-11-07 05:05:38,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 232. [2020-11-07 05:05:38,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-11-07 05:05:38,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 359 transitions. [2020-11-07 05:05:38,810 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 359 transitions. Word has length 132 [2020-11-07 05:05:38,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:38,811 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 359 transitions. [2020-11-07 05:05:38,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:05:38,811 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 359 transitions. [2020-11-07 05:05:38,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-11-07 05:05:38,819 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:38,820 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-11-07 05:05:38,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 05:05:38,820 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:38,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:38,822 INFO L82 PathProgramCache]: Analyzing trace with hash 974308804, now seen corresponding path program 2 times [2020-11-07 05:05:38,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:38,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519086240] [2020-11-07 05:05:38,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:38,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:38,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:38,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 05:05:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:39,325 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 109 proven. 184 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2020-11-07 05:05:39,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519086240] [2020-11-07 05:05:39,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:39,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-11-07 05:05:39,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271861270] [2020-11-07 05:05:39,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-07 05:05:39,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:39,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-07 05:05:39,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-11-07 05:05:39,329 INFO L87 Difference]: Start difference. First operand 232 states and 359 transitions. Second operand 15 states. [2020-11-07 05:05:41,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:41,633 INFO L93 Difference]: Finished difference Result 441 states and 753 transitions. [2020-11-07 05:05:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-07 05:05:41,634 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 186 [2020-11-07 05:05:41,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:41,638 INFO L225 Difference]: With dead ends: 441 [2020-11-07 05:05:41,639 INFO L226 Difference]: Without dead ends: 171 [2020-11-07 05:05:41,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=236, Invalid=1246, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 05:05:41,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-11-07 05:05:41,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 132. [2020-11-07 05:05:41,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-07 05:05:41,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 163 transitions. [2020-11-07 05:05:41,682 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 163 transitions. Word has length 186 [2020-11-07 05:05:41,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:41,683 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 163 transitions. [2020-11-07 05:05:41,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-07 05:05:41,683 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 163 transitions. [2020-11-07 05:05:41,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-11-07 05:05:41,688 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:41,688 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 9, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:41,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 05:05:41,689 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:41,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:41,689 INFO L82 PathProgramCache]: Analyzing trace with hash -280620749, now seen corresponding path program 2 times [2020-11-07 05:05:41,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:41,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652299785] [2020-11-07 05:05:41,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:41,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:41,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:41,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:41,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:41,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-11-07 05:05:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 05:05:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:42,446 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 235 proven. 217 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2020-11-07 05:05:42,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652299785] [2020-11-07 05:05:42,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:42,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-11-07 05:05:42,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418945205] [2020-11-07 05:05:42,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 05:05:42,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:42,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 05:05:42,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-11-07 05:05:42,450 INFO L87 Difference]: Start difference. First operand 132 states and 163 transitions. Second operand 14 states. [2020-11-07 05:05:44,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:44,130 INFO L93 Difference]: Finished difference Result 265 states and 356 transitions. [2020-11-07 05:05:44,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 05:05:44,131 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 239 [2020-11-07 05:05:44,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:44,135 INFO L225 Difference]: With dead ends: 265 [2020-11-07 05:05:44,135 INFO L226 Difference]: Without dead ends: 144 [2020-11-07 05:05:44,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2020-11-07 05:05:44,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-07 05:05:44,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 141. [2020-11-07 05:05:44,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-07 05:05:44,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 169 transitions. [2020-11-07 05:05:44,166 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 169 transitions. Word has length 239 [2020-11-07 05:05:44,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:44,167 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 169 transitions. [2020-11-07 05:05:44,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 05:05:44,167 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 169 transitions. [2020-11-07 05:05:44,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-11-07 05:05:44,173 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:44,174 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 18, 18, 17, 14, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:44,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-07 05:05:44,174 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:44,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:44,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1660389490, now seen corresponding path program 3 times [2020-11-07 05:05:44,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:44,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892353214] [2020-11-07 05:05:44,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:44,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:05:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-11-07 05:05:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:05:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:44,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:45,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2292 backedges. 199 proven. 672 refuted. 0 times theorem prover too weak. 1421 trivial. 0 not checked. [2020-11-07 05:05:45,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1892353214] [2020-11-07 05:05:45,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:45,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-11-07 05:05:45,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79944306] [2020-11-07 05:05:45,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-07 05:05:45,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:45,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-07 05:05:45,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-11-07 05:05:45,079 INFO L87 Difference]: Start difference. First operand 141 states and 169 transitions. Second operand 15 states. [2020-11-07 05:05:47,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:47,404 INFO L93 Difference]: Finished difference Result 315 states and 438 transitions. [2020-11-07 05:05:47,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-07 05:05:47,404 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 360 [2020-11-07 05:05:47,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:47,408 INFO L225 Difference]: With dead ends: 315 [2020-11-07 05:05:47,409 INFO L226 Difference]: Without dead ends: 186 [2020-11-07 05:05:47,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=244, Invalid=1316, Unknown=0, NotChecked=0, Total=1560 [2020-11-07 05:05:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-11-07 05:05:47,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 160. [2020-11-07 05:05:47,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-11-07 05:05:47,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 199 transitions. [2020-11-07 05:05:47,455 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 199 transitions. Word has length 360 [2020-11-07 05:05:47,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:47,456 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 199 transitions. [2020-11-07 05:05:47,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-07 05:05:47,456 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 199 transitions. [2020-11-07 05:05:47,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-11-07 05:05:47,464 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:47,464 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 20, 20, 17, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:47,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-07 05:05:47,465 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:47,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:47,465 INFO L82 PathProgramCache]: Analyzing trace with hash 272474502, now seen corresponding path program 4 times [2020-11-07 05:05:47,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:47,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703146260] [2020-11-07 05:05:47,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:05:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:05:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:47,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:05:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-11-07 05:05:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:05:48,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:48,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2798 backedges. 319 proven. 697 refuted. 0 times theorem prover too weak. 1782 trivial. 0 not checked. [2020-11-07 05:05:48,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703146260] [2020-11-07 05:05:48,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:48,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-11-07 05:05:48,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274399552] [2020-11-07 05:05:48,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-07 05:05:48,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:48,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-07 05:05:48,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-07 05:05:48,465 INFO L87 Difference]: Start difference. First operand 160 states and 199 transitions. Second operand 16 states. [2020-11-07 05:05:51,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:51,067 INFO L93 Difference]: Finished difference Result 331 states and 447 transitions. [2020-11-07 05:05:51,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-11-07 05:05:51,068 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 395 [2020-11-07 05:05:51,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:51,071 INFO L225 Difference]: With dead ends: 331 [2020-11-07 05:05:51,071 INFO L226 Difference]: Without dead ends: 189 [2020-11-07 05:05:51,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=299, Invalid=1681, Unknown=0, NotChecked=0, Total=1980 [2020-11-07 05:05:51,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-11-07 05:05:51,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 172. [2020-11-07 05:05:51,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-07 05:05:51,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 213 transitions. [2020-11-07 05:05:51,111 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 213 transitions. Word has length 395 [2020-11-07 05:05:51,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:51,111 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 213 transitions. [2020-11-07 05:05:51,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-07 05:05:51,112 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 213 transitions. [2020-11-07 05:05:51,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-11-07 05:05:51,118 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:51,118 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 18, 18, 16, 15, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:51,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-07 05:05:51,119 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:51,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:51,119 INFO L82 PathProgramCache]: Analyzing trace with hash 681448365, now seen corresponding path program 5 times [2020-11-07 05:05:51,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:51,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764655695] [2020-11-07 05:05:51,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:05:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-11-07 05:05:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-11-07 05:05:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:05:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2288 backedges. 226 proven. 437 refuted. 0 times theorem prover too weak. 1625 trivial. 0 not checked. [2020-11-07 05:05:51,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764655695] [2020-11-07 05:05:51,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:51,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-07 05:05:51,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429798332] [2020-11-07 05:05:51,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 05:05:51,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:51,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 05:05:51,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-11-07 05:05:51,882 INFO L87 Difference]: Start difference. First operand 172 states and 213 transitions. Second operand 11 states. [2020-11-07 05:05:52,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:52,918 INFO L93 Difference]: Finished difference Result 322 states and 414 transitions. [2020-11-07 05:05:52,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 05:05:52,919 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 360 [2020-11-07 05:05:52,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:52,922 INFO L225 Difference]: With dead ends: 322 [2020-11-07 05:05:52,922 INFO L226 Difference]: Without dead ends: 171 [2020-11-07 05:05:52,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2020-11-07 05:05:52,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-11-07 05:05:52,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 168. [2020-11-07 05:05:52,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-11-07 05:05:52,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 206 transitions. [2020-11-07 05:05:52,959 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 206 transitions. Word has length 360 [2020-11-07 05:05:52,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:52,960 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 206 transitions. [2020-11-07 05:05:52,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 05:05:52,960 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 206 transitions. [2020-11-07 05:05:52,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-11-07 05:05:52,965 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:52,965 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 13, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:52,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-07 05:05:52,966 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:52,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:52,966 INFO L82 PathProgramCache]: Analyzing trace with hash 569490289, now seen corresponding path program 6 times [2020-11-07 05:05:52,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:52,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958461466] [2020-11-07 05:05:52,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:05:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:05:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-11-07 05:05:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:53,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 256 proven. 391 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2020-11-07 05:05:53,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958461466] [2020-11-07 05:05:53,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:53,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-11-07 05:05:53,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535320580] [2020-11-07 05:05:53,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 05:05:53,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:53,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 05:05:53,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-11-07 05:05:53,648 INFO L87 Difference]: Start difference. First operand 168 states and 206 transitions. Second operand 14 states. [2020-11-07 05:05:55,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:55,398 INFO L93 Difference]: Finished difference Result 324 states and 414 transitions. [2020-11-07 05:05:55,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 05:05:55,403 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 290 [2020-11-07 05:05:55,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:55,406 INFO L225 Difference]: With dead ends: 324 [2020-11-07 05:05:55,406 INFO L226 Difference]: Without dead ends: 178 [2020-11-07 05:05:55,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2020-11-07 05:05:55,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-11-07 05:05:55,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 175. [2020-11-07 05:05:55,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-11-07 05:05:55,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 214 transitions. [2020-11-07 05:05:55,446 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 214 transitions. Word has length 290 [2020-11-07 05:05:55,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:55,447 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 214 transitions. [2020-11-07 05:05:55,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 05:05:55,447 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 214 transitions. [2020-11-07 05:05:55,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-11-07 05:05:55,450 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:55,450 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 19, 19, 17, 16, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:55,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-07 05:05:55,451 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:55,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:55,451 INFO L82 PathProgramCache]: Analyzing trace with hash 2071325558, now seen corresponding path program 7 times [2020-11-07 05:05:55,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:55,452 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052137390] [2020-11-07 05:05:55,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:05:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:05:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:55,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:05:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2020-11-07 05:05:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2552 backedges. 515 proven. 528 refuted. 0 times theorem prover too weak. 1509 trivial. 0 not checked. [2020-11-07 05:05:56,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052137390] [2020-11-07 05:05:56,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:56,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-11-07 05:05:56,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101667574] [2020-11-07 05:05:56,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-07 05:05:56,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:56,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-07 05:05:56,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-11-07 05:05:56,362 INFO L87 Difference]: Start difference. First operand 175 states and 214 transitions. Second operand 16 states. [2020-11-07 05:05:58,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:05:58,812 INFO L93 Difference]: Finished difference Result 345 states and 442 transitions. [2020-11-07 05:05:58,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-07 05:05:58,818 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 378 [2020-11-07 05:05:58,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:05:58,823 INFO L225 Difference]: With dead ends: 345 [2020-11-07 05:05:58,824 INFO L226 Difference]: Without dead ends: 192 [2020-11-07 05:05:58,826 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=230, Invalid=1252, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 05:05:58,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-11-07 05:05:58,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 175. [2020-11-07 05:05:58,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-11-07 05:05:58,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 212 transitions. [2020-11-07 05:05:58,865 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 212 transitions. Word has length 378 [2020-11-07 05:05:58,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:05:58,866 INFO L481 AbstractCegarLoop]: Abstraction has 175 states and 212 transitions. [2020-11-07 05:05:58,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-07 05:05:58,867 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 212 transitions. [2020-11-07 05:05:58,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-11-07 05:05:58,870 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:05:58,870 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, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:05:58,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-07 05:05:58,870 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:05:58,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:05:58,871 INFO L82 PathProgramCache]: Analyzing trace with hash 239489881, now seen corresponding path program 8 times [2020-11-07 05:05:58,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:05:58,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159892018] [2020-11-07 05:05:58,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:05:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:05:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:05:59,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:05:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:05:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 05:05:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:05:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:05:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:05:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:05:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:05:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:05:59,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2534 backedges. 130 proven. 672 refuted. 0 times theorem prover too weak. 1732 trivial. 0 not checked. [2020-11-07 05:05:59,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159892018] [2020-11-07 05:05:59,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:05:59,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-11-07 05:05:59,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436122620] [2020-11-07 05:05:59,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 05:05:59,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:05:59,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 05:05:59,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-11-07 05:05:59,743 INFO L87 Difference]: Start difference. First operand 175 states and 212 transitions. Second operand 13 states. [2020-11-07 05:06:01,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:06:01,141 INFO L93 Difference]: Finished difference Result 404 states and 528 transitions. [2020-11-07 05:06:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 05:06:01,141 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 378 [2020-11-07 05:06:01,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:06:01,148 INFO L225 Difference]: With dead ends: 404 [2020-11-07 05:06:01,148 INFO L226 Difference]: Without dead ends: 397 [2020-11-07 05:06:01,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2020-11-07 05:06:01,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-11-07 05:06:01,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 364. [2020-11-07 05:06:01,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-11-07 05:06:01,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 472 transitions. [2020-11-07 05:06:01,235 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 472 transitions. Word has length 378 [2020-11-07 05:06:01,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:06:01,236 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 472 transitions. [2020-11-07 05:06:01,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 05:06:01,236 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 472 transitions. [2020-11-07 05:06:01,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2020-11-07 05:06:01,243 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:06:01,243 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 11, 11, 10, 10, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:06:01,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-07 05:06:01,243 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:06:01,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:06:01,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1417613262, now seen corresponding path program 9 times [2020-11-07 05:06:01,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:06:01,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032603224] [2020-11-07 05:06:01,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:06:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:01,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:06:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:01,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:06:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:01,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:02,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:02,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:02,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:02,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:02,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:02,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:02,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:02,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:02,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:02,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:02,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:06:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 05:06:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:03,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-11-07 05:06:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:06:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:04,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:05,791 INFO L134 CoverageAnalysis]: Checked inductivity of 6986 backedges. 0 proven. 2642 refuted. 0 times theorem prover too weak. 4344 trivial. 0 not checked. [2020-11-07 05:06:05,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032603224] [2020-11-07 05:06:05,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:06:05,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-11-07 05:06:05,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470315259] [2020-11-07 05:06:05,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-11-07 05:06:05,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:06:05,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-11-07 05:06:05,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-11-07 05:06:05,797 INFO L87 Difference]: Start difference. First operand 364 states and 472 transitions. Second operand 41 states. [2020-11-07 05:06:15,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:06:15,333 INFO L93 Difference]: Finished difference Result 558 states and 769 transitions. [2020-11-07 05:06:15,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-11-07 05:06:15,333 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 607 [2020-11-07 05:06:15,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:06:15,341 INFO L225 Difference]: With dead ends: 558 [2020-11-07 05:06:15,342 INFO L226 Difference]: Without dead ends: 551 [2020-11-07 05:06:15,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1718 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=441, Invalid=9659, Unknown=0, NotChecked=0, Total=10100 [2020-11-07 05:06:15,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2020-11-07 05:06:15,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 388. [2020-11-07 05:06:15,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-11-07 05:06:15,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 518 transitions. [2020-11-07 05:06:15,452 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 518 transitions. Word has length 607 [2020-11-07 05:06:15,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:06:15,453 INFO L481 AbstractCegarLoop]: Abstraction has 388 states and 518 transitions. [2020-11-07 05:06:15,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-11-07 05:06:15,453 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 518 transitions. [2020-11-07 05:06:15,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2020-11-07 05:06:15,460 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:06:15,460 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 32, 32, 27, 27, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 11, 11, 10, 10, 8, 8, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:06:15,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-07 05:06:15,461 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:06:15,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:06:15,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1476433688, now seen corresponding path program 10 times [2020-11-07 05:06:15,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:06:15,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [387852791] [2020-11-07 05:06:15,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:06:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:15,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:06:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:15,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:06:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:15,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:06:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 05:06:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:06:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2020-11-07 05:06:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:16,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:17,387 INFO L134 CoverageAnalysis]: Checked inductivity of 6996 backedges. 1091 proven. 1173 refuted. 0 times theorem prover too weak. 4732 trivial. 0 not checked. [2020-11-07 05:06:17,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [387852791] [2020-11-07 05:06:17,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:06:17,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-11-07 05:06:17,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527825311] [2020-11-07 05:06:17,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-07 05:06:17,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:06:17,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-07 05:06:17,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2020-11-07 05:06:17,390 INFO L87 Difference]: Start difference. First operand 388 states and 518 transitions. Second operand 19 states. [2020-11-07 05:06:20,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:06:20,784 INFO L93 Difference]: Finished difference Result 889 states and 1324 transitions. [2020-11-07 05:06:20,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-11-07 05:06:20,784 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 607 [2020-11-07 05:06:20,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:06:20,794 INFO L225 Difference]: With dead ends: 889 [2020-11-07 05:06:20,794 INFO L226 Difference]: Without dead ends: 526 [2020-11-07 05:06:20,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=352, Invalid=2300, Unknown=0, NotChecked=0, Total=2652 [2020-11-07 05:06:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-07 05:06:20,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 473. [2020-11-07 05:06:20,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-11-07 05:06:20,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 661 transitions. [2020-11-07 05:06:20,927 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 661 transitions. Word has length 607 [2020-11-07 05:06:20,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:06:20,928 INFO L481 AbstractCegarLoop]: Abstraction has 473 states and 661 transitions. [2020-11-07 05:06:20,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-07 05:06:20,928 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 661 transitions. [2020-11-07 05:06:20,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 749 [2020-11-07 05:06:20,936 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:06:20,937 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 34, 33, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 14, 14, 12, 12, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:06:20,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-07 05:06:20,937 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:06:20,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:06:20,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1501432396, now seen corresponding path program 11 times [2020-11-07 05:06:20,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:06:20,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335869476] [2020-11-07 05:06:20,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:06:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:06:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:06:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:06:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 05:06:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:21,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-11-07 05:06:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:06:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 05:06:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:22,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:23,196 INFO L134 CoverageAnalysis]: Checked inductivity of 10826 backedges. 1189 proven. 2172 refuted. 0 times theorem prover too weak. 7465 trivial. 0 not checked. [2020-11-07 05:06:23,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335869476] [2020-11-07 05:06:23,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:06:23,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-11-07 05:06:23,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110679037] [2020-11-07 05:06:23,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-07 05:06:23,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:06:23,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-07 05:06:23,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2020-11-07 05:06:23,198 INFO L87 Difference]: Start difference. First operand 473 states and 661 transitions. Second operand 21 states. [2020-11-07 05:06:27,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:06:27,469 INFO L93 Difference]: Finished difference Result 808 states and 1230 transitions. [2020-11-07 05:06:27,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-11-07 05:06:27,472 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 748 [2020-11-07 05:06:27,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:06:27,480 INFO L225 Difference]: With dead ends: 808 [2020-11-07 05:06:27,480 INFO L226 Difference]: Without dead ends: 292 [2020-11-07 05:06:27,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1064 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=519, Invalid=3387, Unknown=0, NotChecked=0, Total=3906 [2020-11-07 05:06:27,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-11-07 05:06:27,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 242. [2020-11-07 05:06:27,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-11-07 05:06:27,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 318 transitions. [2020-11-07 05:06:27,549 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 318 transitions. Word has length 748 [2020-11-07 05:06:27,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:06:27,550 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 318 transitions. [2020-11-07 05:06:27,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-07 05:06:27,550 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 318 transitions. [2020-11-07 05:06:27,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2020-11-07 05:06:27,556 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:06:27,557 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 35, 35, 30, 29, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 13, 13, 10, 10, 8, 8, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:06:27,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-07 05:06:27,557 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:06:27,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:06:27,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1927969767, now seen corresponding path program 12 times [2020-11-07 05:06:27,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:06:27,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592398441] [2020-11-07 05:06:27,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:06:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:27,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:06:27,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:27,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:06:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:06:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 05:06:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-11-07 05:06:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:06:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:28,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:29,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:29,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:29,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:29,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:29,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:29,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:29,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:29,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:29,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:29,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:29,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:29,806 INFO L134 CoverageAnalysis]: Checked inductivity of 8348 backedges. 1712 proven. 1706 refuted. 0 times theorem prover too weak. 4930 trivial. 0 not checked. [2020-11-07 05:06:29,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592398441] [2020-11-07 05:06:29,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:06:29,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-11-07 05:06:29,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254918397] [2020-11-07 05:06:29,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-11-07 05:06:29,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:06:29,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-11-07 05:06:29,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2020-11-07 05:06:29,810 INFO L87 Difference]: Start difference. First operand 242 states and 318 transitions. Second operand 25 states. [2020-11-07 05:06:34,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:06:34,745 INFO L93 Difference]: Finished difference Result 530 states and 766 transitions. [2020-11-07 05:06:34,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-11-07 05:06:34,746 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 660 [2020-11-07 05:06:34,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:06:34,753 INFO L225 Difference]: With dead ends: 530 [2020-11-07 05:06:34,753 INFO L226 Difference]: Without dead ends: 314 [2020-11-07 05:06:34,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1813 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=806, Invalid=5046, Unknown=0, NotChecked=0, Total=5852 [2020-11-07 05:06:34,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-11-07 05:06:34,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 268. [2020-11-07 05:06:34,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-11-07 05:06:34,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 354 transitions. [2020-11-07 05:06:34,824 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 354 transitions. Word has length 660 [2020-11-07 05:06:34,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:06:34,825 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 354 transitions. [2020-11-07 05:06:34,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-11-07 05:06:34,825 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 354 transitions. [2020-11-07 05:06:34,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1348 [2020-11-07 05:06:34,844 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:06:34,845 INFO L422 BasicCegarLoop]: trace histogram [76, 76, 75, 75, 61, 61, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 24, 24, 23, 23, 15, 15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:06:34,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-07 05:06:34,846 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:06:34,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:06:34,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1488380238, now seen corresponding path program 13 times [2020-11-07 05:06:34,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:06:34,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630443911] [2020-11-07 05:06:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:06:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:35,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:06:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:35,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-11-07 05:06:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:06:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:36,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 05:06:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-11-07 05:06:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:06:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2020-11-07 05:06:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:06:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 05:06:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:37,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2020-11-07 05:06:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 05:06:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-11-07 05:06:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-11-07 05:06:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:06:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-07 05:06:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-11-07 05:06:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:38,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-07 05:06:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:06:39,879 INFO L134 CoverageAnalysis]: Checked inductivity of 36468 backedges. 926 proven. 3711 refuted. 0 times theorem prover too weak. 31831 trivial. 0 not checked. [2020-11-07 05:06:39,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630443911] [2020-11-07 05:06:39,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:06:39,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-11-07 05:06:39,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978053582] [2020-11-07 05:06:39,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-07 05:06:39,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:06:39,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-07 05:06:39,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2020-11-07 05:06:39,883 INFO L87 Difference]: Start difference. First operand 268 states and 354 transitions. Second operand 15 states. [2020-11-07 05:06:41,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:06:41,666 INFO L93 Difference]: Finished difference Result 301 states and 410 transitions. [2020-11-07 05:06:41,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 05:06:41,667 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 1347 [2020-11-07 05:06:41,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:06:41,669 INFO L225 Difference]: With dead ends: 301 [2020-11-07 05:06:41,669 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 05:06:41,673 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2020-11-07 05:06:41,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 05:06:41,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 05:06:41,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 05:06:41,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 05:06:41,674 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1347 [2020-11-07 05:06:41,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:06:41,674 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 05:06:41,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-07 05:06:41,675 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 05:06:41,675 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 05:06:41,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-07 05:06:41,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 05:06:44,913 WARN L194 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 117 [2020-11-07 05:06:45,475 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 137 [2020-11-07 05:06:45,802 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 147 [2020-11-07 05:06:46,004 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 148 [2020-11-07 05:06:46,594 WARN L194 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 148 [2020-11-07 05:06:49,881 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 122 [2020-11-07 05:06:53,897 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 138 [2020-11-07 05:06:54,085 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2020-11-07 05:06:56,643 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 137 [2020-11-07 05:06:57,231 WARN L194 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 138 [2020-11-07 05:06:57,407 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2020-11-07 05:07:06,574 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 128 [2020-11-07 05:07:07,052 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 128 [2020-11-07 05:07:07,323 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 133 [2020-11-07 05:07:07,860 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2020-11-07 05:07:08,508 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 130 [2020-11-07 05:07:08,791 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 128 [2020-11-07 05:07:09,101 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 133 [2020-11-07 05:07:09,311 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 124 [2020-11-07 05:07:19,723 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 128 [2020-11-07 05:07:20,196 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 128 [2020-11-07 05:07:20,462 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 133 [2020-11-07 05:07:20,982 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2020-11-07 05:07:21,626 WARN L194 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 130 [2020-11-07 05:07:21,909 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 128 [2020-11-07 05:07:22,220 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 133 [2020-11-07 05:07:22,414 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 124 [2020-11-07 05:07:26,592 WARN L194 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 10 [2020-11-07 05:07:27,061 WARN L194 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 6 [2020-11-07 05:07:27,479 WARN L194 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 6 [2020-11-07 05:07:28,838 WARN L194 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 184 DAG size of output: 50 [2020-11-07 05:07:29,238 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 6 [2020-11-07 05:07:32,090 WARN L194 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 297 DAG size of output: 80 [2020-11-07 05:07:34,448 WARN L194 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 280 DAG size of output: 55 [2020-11-07 05:07:35,825 WARN L194 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 184 DAG size of output: 50 [2020-11-07 05:07:38,572 WARN L194 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 305 DAG size of output: 65 [2020-11-07 05:07:41,338 WARN L194 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 305 DAG size of output: 65 [2020-11-07 05:07:41,629 WARN L194 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 6 [2020-11-07 05:07:41,813 WARN L194 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 1 [2020-11-07 05:07:43,209 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 176 DAG size of output: 47 [2020-11-07 05:07:44,574 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 199 DAG size of output: 53 [2020-11-07 05:07:46,072 WARN L194 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 197 DAG size of output: 54 [2020-11-07 05:07:46,426 WARN L194 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 3 [2020-11-07 05:07:47,801 WARN L194 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 199 DAG size of output: 53 [2020-11-07 05:07:48,160 WARN L194 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 6 [2020-11-07 05:07:51,458 WARN L194 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 341 DAG size of output: 58 [2020-11-07 05:07:51,891 WARN L194 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 7 [2020-11-07 05:07:53,281 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 176 DAG size of output: 47 [2020-11-07 05:07:53,491 WARN L194 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 1 [2020-11-07 05:07:54,992 WARN L194 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 197 DAG size of output: 54 [2020-11-07 05:07:56,653 WARN L194 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 213 DAG size of output: 70 [2020-11-07 05:07:58,044 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 198 DAG size of output: 52 [2020-11-07 05:07:58,464 WARN L194 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 8 [2020-11-07 05:08:01,852 WARN L194 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 341 DAG size of output: 58 [2020-11-07 05:08:02,273 WARN L194 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 3 [2020-11-07 05:08:02,280 INFO L269 CegarLoopResult]: At program point reach_errorEXIT(line 4) the Hoare annotation is: true [2020-11-07 05:08:02,281 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-07 05:08:02,281 INFO L269 CegarLoopResult]: At program point reach_errorFINAL(line 4) the Hoare annotation is: true [2020-11-07 05:08:02,281 INFO L269 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) the Hoare annotation is: true [2020-11-07 05:08:02,281 INFO L269 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: true [2020-11-07 05:08:02,282 INFO L269 CegarLoopResult]: At program point L4-4(line 4) the Hoare annotation is: true [2020-11-07 05:08:02,282 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 05:08:02,282 INFO L269 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-11-07 05:08:02,282 INFO L269 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 4) the Hoare annotation is: true [2020-11-07 05:08:02,282 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-11-07 05:08:02,282 INFO L269 CegarLoopResult]: At program point L4(line 4) the Hoare annotation is: true [2020-11-07 05:08:02,283 INFO L269 CegarLoopResult]: At program point L4-1(line 4) the Hoare annotation is: true [2020-11-07 05:08:02,283 INFO L269 CegarLoopResult]: At program point L4-2(line 4) the Hoare annotation is: true [2020-11-07 05:08:02,283 INFO L269 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-11-07 05:08:02,283 INFO L269 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-11-07 05:08:02,283 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-07 05:08:02,283 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-07 05:08:02,283 INFO L269 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-11-07 05:08:02,283 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 37 44) the Hoare annotation is: true [2020-11-07 05:08:02,284 INFO L262 CegarLoopResult]: At program point mainEXIT(lines 37 44) the Hoare annotation is: (<= 8 main_~x~0) [2020-11-07 05:08:02,284 INFO L262 CegarLoopResult]: At program point mainFINAL(lines 37 44) the Hoare annotation is: (<= 8 main_~x~0) [2020-11-07 05:08:02,284 INFO L262 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: false [2020-11-07 05:08:02,284 INFO L262 CegarLoopResult]: At program point L40(lines 40 42) the Hoare annotation is: (and (<= 8 main_~x~0) (<= main_~result~0 21) (<= 21 main_~result~0)) [2020-11-07 05:08:02,284 INFO L262 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: false [2020-11-07 05:08:02,284 INFO L262 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (and (<= 8 main_~x~0) (<= main_~x~0 8)) [2020-11-07 05:08:02,284 INFO L262 CegarLoopResult]: At program point L39-1(line 39) the Hoare annotation is: (and (<= 8 main_~x~0) (<= 21 |main_#t~ret11|) (<= |main_#t~ret11| 21)) [2020-11-07 05:08:02,284 INFO L262 CegarLoopResult]: At program point L40-2(lines 40 42) the Hoare annotation is: (<= 8 main_~x~0) [2020-11-07 05:08:02,284 INFO L262 CegarLoopResult]: At program point L39-2(line 39) the Hoare annotation is: (and (<= 8 main_~x~0) (<= 21 |main_#t~ret11|) (<= |main_#t~ret11| 21)) [2020-11-07 05:08:02,284 INFO L262 CegarLoopResult]: At program point L39-3(line 39) the Hoare annotation is: (and (<= 8 main_~x~0) (<= main_~result~0 21) (<= 21 |main_#t~ret11|) (<= |main_#t~ret11| 21) (<= 21 main_~result~0)) [2020-11-07 05:08:02,284 INFO L269 CegarLoopResult]: At program point fibo2ENTRY(lines 19 27) the Hoare annotation is: true [2020-11-07 05:08:02,285 INFO L262 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (not (<= |fibo2_#in~n| 1))) [2020-11-07 05:08:02,285 INFO L262 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: (let ((.cse4 (<= |fibo2_#in~n| 7)) (.cse0 (= fibo2_~n |fibo2_#in~n|))) (let ((.cse2 (and (<= fibo2_~n 6) (<= |fibo2_#t~ret9| 5) (<= 6 fibo2_~n) .cse0 (<= 5 |fibo2_#t~ret9|))) (.cse3 (and .cse4 (<= 8 |fibo2_#t~ret9|) (<= |fibo2_#t~ret9| 8) (<= 7 |fibo2_#in~n|) .cse0)) (.cse1 (<= 5 |fibo2_#in~n|))) (and (or (and (<= |fibo2_#t~ret9| 1) .cse0 (< 1 fibo2_~n) (<= 1 |fibo2_#t~ret9|)) (not (<= |fibo2_#in~n| 3))) (or (not (<= 3 |fibo2_#in~n|)) (and (<= |fibo2_#t~ret9| 2) .cse0 (<= 2 |fibo2_#t~ret9|)) (and .cse0 .cse1)) (or .cse2 (not (<= 6 |fibo2_#in~n|)) .cse3 (<= 8 |fibo2_#in~n|)) (or .cse2 (not .cse4) .cse3 (not .cse1) (and (<= |fibo2_#t~ret9| 3) (<= 3 |fibo2_#t~ret9|)))))) [2020-11-07 05:08:02,285 INFO L262 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (not (<= 2 |fibo2_#in~n|)) (< 0 fibo2_~n)) [2020-11-07 05:08:02,285 INFO L262 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (let ((.cse4 (<= |fibo2_#in~n| 7)) (.cse0 (= fibo2_~n |fibo2_#in~n|))) (let ((.cse2 (and (<= fibo2_~n 6) (<= |fibo2_#t~ret9| 5) (<= 6 fibo2_~n) .cse0 (<= 5 |fibo2_#t~ret9|))) (.cse3 (and .cse4 (<= 8 |fibo2_#t~ret9|) (<= |fibo2_#t~ret9| 8) (<= 7 |fibo2_#in~n|) .cse0)) (.cse1 (<= 5 |fibo2_#in~n|))) (and (or (and (<= |fibo2_#t~ret9| 1) .cse0 (< 1 fibo2_~n) (<= 1 |fibo2_#t~ret9|)) (not (<= |fibo2_#in~n| 3))) (or (not (<= 3 |fibo2_#in~n|)) (and (<= |fibo2_#t~ret9| 2) .cse0 (<= 2 |fibo2_#t~ret9|)) (and .cse0 .cse1)) (or .cse2 (not (<= 6 |fibo2_#in~n|)) .cse3 (<= 8 |fibo2_#in~n|)) (or .cse2 (not .cse4) .cse3 (not .cse1) (and (<= |fibo2_#t~ret9| 3) (<= 3 |fibo2_#t~ret9|)))))) [2020-11-07 05:08:02,285 INFO L262 CegarLoopResult]: At program point L22(lines 22 26) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (< 0 fibo2_~n)) [2020-11-07 05:08:02,285 INFO L262 CegarLoopResult]: At program point L25-3(line 25) the Hoare annotation is: (let ((.cse1 (= fibo2_~n |fibo2_#in~n|)) (.cse0 (+ |fibo2_#t~ret9| |fibo2_#t~ret10|))) (or (and (<= 8 .cse0) (<= fibo2_~n 6) (<= .cse0 8) (<= |fibo2_#t~ret9| 5) (<= 6 fibo2_~n) .cse1 (<= 5 |fibo2_#t~ret9|)) (and (<= |fibo2_#t~ret9| 3) (<= 3 |fibo2_#t~ret9|) (<= .cse0 5) .cse1 (<= 5 |fibo2_#in~n|) (<= |fibo2_#in~n| 5) (<= 5 .cse0)) (and (<= 8 |fibo2_#t~ret9|) (<= |fibo2_#t~ret9| 8) (<= 7 |fibo2_#in~n|) (<= .cse0 13) .cse1 (<= 13 .cse0)) (and (<= |fibo2_#t~ret9| 1) .cse1 (<= .cse0 1) (< 1 fibo2_~n) (<= 1 |fibo2_#t~ret9|) (<= 1 .cse0) (<= |fibo2_#in~n| 2)) (and .cse1 (<= 8 |fibo2_#in~n|)) (and (<= .cse0 3) (<= |fibo2_#t~ret9| 2) (<= 4 |fibo2_#in~n|) (<= |fibo2_#in~n| 4) .cse1 (<= 3 .cse0) (<= 2 |fibo2_#t~ret9|)))) [2020-11-07 05:08:02,285 INFO L262 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (<= |fibo2_#in~n| 0)) [2020-11-07 05:08:02,286 INFO L262 CegarLoopResult]: At program point L25-4(line 25) the Hoare annotation is: (let ((.cse1 (= fibo2_~n |fibo2_#in~n|)) (.cse0 (+ |fibo2_#t~ret9| |fibo2_#t~ret10|))) (or (and (<= 8 .cse0) (<= fibo2_~n 6) (<= .cse0 8) (<= |fibo2_#t~ret9| 5) (<= 6 fibo2_~n) .cse1 (<= 5 |fibo2_#t~ret9|)) (and (<= |fibo2_#t~ret9| 3) (<= 3 |fibo2_#t~ret9|) (<= .cse0 5) .cse1 (<= 5 |fibo2_#in~n|) (<= |fibo2_#in~n| 5) (<= 5 .cse0)) (and (<= 8 |fibo2_#t~ret9|) (<= |fibo2_#t~ret9| 8) (<= 7 |fibo2_#in~n|) (<= .cse0 13) .cse1 (<= 13 .cse0)) (and (<= |fibo2_#t~ret9| 1) .cse1 (<= .cse0 1) (< 1 fibo2_~n) (<= 1 |fibo2_#t~ret9|) (<= 1 .cse0) (<= |fibo2_#in~n| 2)) (and .cse1 (<= 8 |fibo2_#in~n|)) (and (<= .cse0 3) (<= |fibo2_#t~ret9| 2) (<= 4 |fibo2_#in~n|) (<= |fibo2_#in~n| 4) .cse1 (<= 3 .cse0) (<= 2 |fibo2_#t~ret9|)))) [2020-11-07 05:08:02,286 INFO L262 CegarLoopResult]: At program point L20(lines 20 26) the Hoare annotation is: (= fibo2_~n |fibo2_#in~n|) [2020-11-07 05:08:02,286 INFO L262 CegarLoopResult]: At program point L25-5(line 25) the Hoare annotation is: (let ((.cse1 (+ |fibo2_#t~ret9| |fibo2_#t~ret10|)) (.cse0 (= fibo2_~n |fibo2_#in~n|))) (and (or (not (<= |fibo2_#in~n| 5)) (and (<= |fibo2_#t~ret9| 3) (<= |fibo2_#res| 5) (<= 3 |fibo2_#t~ret9|) .cse0 (<= .cse1 5) (<= 5 |fibo2_#in~n|) (<= 5 |fibo2_#res|) (<= 5 .cse1)) (and (<= .cse1 3) (<= |fibo2_#t~ret9| 2) (<= |fibo2_#in~n| 4) (<= 3 |fibo2_#res|) (<= |fibo2_#res| 3) .cse0 (<= 3 .cse1) (<= 2 |fibo2_#t~ret9|)) (<= |fibo2_#in~n| 2)) (or (not (<= |fibo2_#in~n| 3)) (and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1) (<= |fibo2_#t~ret9| 1) .cse0 (<= .cse1 1) (< 1 fibo2_~n) (<= 1 |fibo2_#t~ret9|) (<= 1 .cse1))) (or (not (<= 6 |fibo2_#in~n|)) (and (<= 8 .cse1) (<= fibo2_~n 6) (<= .cse1 8) (<= |fibo2_#res| 8) (<= |fibo2_#t~ret9| 5) (<= 8 |fibo2_#res|) .cse0 (<= 5 |fibo2_#t~ret9|)) (and (<= 8 |fibo2_#t~ret9|) (<= |fibo2_#t~ret9| 8) (<= 13 |fibo2_#res|) (<= 7 |fibo2_#in~n|) (<= .cse1 13) (<= |fibo2_#res| 13) .cse0 (<= 13 .cse1)) (and .cse0 (<= 8 |fibo2_#in~n|))))) [2020-11-07 05:08:02,286 INFO L262 CegarLoopResult]: At program point L25-6(line 25) the Hoare annotation is: (let ((.cse0 (= fibo2_~n |fibo2_#in~n|))) (or (and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1) (<= |fibo2_#t~ret9| 1) .cse0 (< 1 fibo2_~n) (<= 1 |fibo2_#t~ret9|) (<= |fibo2_#in~n| 2)) (and (<= 8 |fibo2_#t~ret9|) (<= |fibo2_#t~ret9| 8) (<= 13 |fibo2_#res|) (<= 7 |fibo2_#in~n|) (<= |fibo2_#res| 13) .cse0) (and (<= |fibo2_#t~ret9| 2) (<= 4 |fibo2_#in~n|) (<= |fibo2_#in~n| 4) (<= 3 |fibo2_#res|) (<= |fibo2_#res| 3) .cse0 (<= 2 |fibo2_#t~ret9|)) (and (<= |fibo2_#t~ret9| 3) (<= |fibo2_#res| 5) (<= 3 |fibo2_#t~ret9|) .cse0 (<= 5 |fibo2_#in~n|) (<= |fibo2_#in~n| 5) (<= 5 |fibo2_#res|)) (and .cse0 (<= 8 |fibo2_#in~n|)) (and (<= fibo2_~n 6) (<= |fibo2_#res| 8) (<= |fibo2_#t~ret9| 5) (<= 6 fibo2_~n) (<= 8 |fibo2_#res|) .cse0 (<= 5 |fibo2_#t~ret9|)))) [2020-11-07 05:08:02,286 INFO L262 CegarLoopResult]: At program point fibo2FINAL(lines 19 27) the Hoare annotation is: (let ((.cse3 (<= 4 |fibo2_#in~n|)) (.cse0 (<= |fibo2_#in~n| 4)) (.cse2 (= fibo2_~n |fibo2_#in~n|))) (let ((.cse1 (and .cse3 .cse0 (<= 3 |fibo2_#res|) (<= |fibo2_#res| 3) .cse2))) (and (or (not .cse0) .cse1 (<= |fibo2_#in~n| 2)) (or (and .cse2 (<= |fibo2_#in~n| 0)) (and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1)) (not (<= |fibo2_#in~n| 3))) (or (and (<= 13 |fibo2_#res|) (<= 7 |fibo2_#in~n|) (<= |fibo2_#res| 13)) (not .cse3) .cse1 (and (<= fibo2_~n 6) (<= |fibo2_#res| 8) (<= 6 fibo2_~n) (<= 8 |fibo2_#res|)) (and (<= |fibo2_#res| 5) (<= |fibo2_#in~n| 5) (<= 5 |fibo2_#res|)) (and .cse2 (<= 8 |fibo2_#in~n|))) (or (and .cse2 (< 0 fibo2_~n)) (and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|)))))) [2020-11-07 05:08:02,287 INFO L262 CegarLoopResult]: At program point fibo2EXIT(lines 19 27) the Hoare annotation is: (let ((.cse3 (<= 4 |fibo2_#in~n|)) (.cse0 (<= |fibo2_#in~n| 4)) (.cse2 (= fibo2_~n |fibo2_#in~n|))) (let ((.cse1 (and .cse3 .cse0 (<= 3 |fibo2_#res|) (<= |fibo2_#res| 3) .cse2))) (and (or (not .cse0) .cse1 (<= |fibo2_#in~n| 2)) (or (and .cse2 (<= |fibo2_#in~n| 0)) (and (<= 1 |fibo2_#res|) (<= |fibo2_#res| 1)) (not (<= |fibo2_#in~n| 3))) (or (and (<= 13 |fibo2_#res|) (<= 7 |fibo2_#in~n|) (<= |fibo2_#res| 13)) (not .cse3) .cse1 (and (<= fibo2_~n 6) (<= |fibo2_#res| 8) (<= 6 fibo2_~n) (<= 8 |fibo2_#res|)) (and (<= |fibo2_#res| 5) (<= |fibo2_#in~n| 5) (<= 5 |fibo2_#res|)) (and .cse2 (<= 8 |fibo2_#in~n|))) (or (and .cse2 (< 0 fibo2_~n)) (and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|)))))) [2020-11-07 05:08:02,287 INFO L269 CegarLoopResult]: At program point fibo1ENTRY(lines 9 17) the Hoare annotation is: true [2020-11-07 05:08:02,287 INFO L262 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (<= 2 |fibo1_#in~n|) (= fibo1_~n |fibo1_#in~n|)) [2020-11-07 05:08:02,287 INFO L262 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: (let ((.cse0 (= fibo1_~n |fibo1_#in~n|)) (.cse1 (<= |fibo1_#in~n| 4))) (let ((.cse2 (and (<= 4 |fibo1_#in~n|) .cse0 (<= |fibo1_#t~ret7| 2) .cse1 (<= 2 |fibo1_#t~ret7|)))) (and (not (<= |fibo1_#in~n| 1)) (or (and (<= 7 fibo1_~n) .cse0 (<= |fibo1_#in~n| 7)) (and (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret7|) (<= 5 fibo1_~n) (<= fibo1_~n 5) (<= |fibo1_#t~ret7| 3)) (and (<= 1 |fibo1_#t~ret7|) (<= |fibo1_#t~ret7| 1) .cse1) .cse2 (and .cse0 (<= 9 |fibo1_#in~n|)) (and (<= fibo1_~n 6) (<= 5 |fibo1_#t~ret7|) .cse0 (<= |fibo1_#t~ret7| 5) (<= 6 |fibo1_#in~n|)) (and (<= 8 fibo1_~n) .cse0 (<= 13 |fibo1_#t~ret7|) (<= |fibo1_#t~ret7| 13))) (or (and (<= |fibo1_#in~n| 3) .cse0) (not .cse1) .cse2)))) [2020-11-07 05:08:02,287 INFO L262 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (<= |fibo1_#in~n| 1) (< 0 fibo1_~n) (= fibo1_~n |fibo1_#in~n|)) [2020-11-07 05:08:02,287 INFO L262 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: (let ((.cse0 (= fibo1_~n |fibo1_#in~n|)) (.cse1 (<= |fibo1_#in~n| 4))) (let ((.cse2 (and (<= 4 |fibo1_#in~n|) .cse0 (<= |fibo1_#t~ret7| 2) .cse1 (<= 2 |fibo1_#t~ret7|)))) (and (not (<= |fibo1_#in~n| 1)) (or (and (<= 7 fibo1_~n) .cse0 (<= |fibo1_#in~n| 7)) (and (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret7|) (<= 5 fibo1_~n) (<= fibo1_~n 5) (<= |fibo1_#t~ret7| 3)) (and (<= 1 |fibo1_#t~ret7|) (<= |fibo1_#t~ret7| 1) .cse1) .cse2 (and .cse0 (<= 9 |fibo1_#in~n|)) (and (<= fibo1_~n 6) (<= 5 |fibo1_#t~ret7|) .cse0 (<= |fibo1_#t~ret7| 5) (<= 6 |fibo1_#in~n|)) (and (<= 8 fibo1_~n) .cse0 (<= 13 |fibo1_#t~ret7|) (<= |fibo1_#t~ret7| 13))) (or (and (<= |fibo1_#in~n| 3) .cse0) (not .cse1) .cse2)))) [2020-11-07 05:08:02,287 INFO L262 CegarLoopResult]: At program point L12(lines 12 16) the Hoare annotation is: (and (= fibo1_~n |fibo1_#in~n|) (< 0 fibo1_~n)) [2020-11-07 05:08:02,288 INFO L262 CegarLoopResult]: At program point L15-3(line 15) the Hoare annotation is: (and (not (<= |fibo1_#in~n| 1)) (let ((.cse2 (<= 1 |fibo1_#t~ret7|)) (.cse3 (<= |fibo1_#t~ret7| 1)) (.cse0 (+ |fibo1_#t~ret7| |fibo1_#t~ret8|)) (.cse1 (= fibo1_~n |fibo1_#in~n|))) (or (and (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret7|) (<= 5 .cse0) (<= 5 |fibo1_#in~n|) .cse1 (<= |fibo1_#t~ret7| 3) (<= .cse0 5)) (and (<= 5 |fibo1_#t~ret7|) (<= |fibo1_#in~n| 6) (<= 8 .cse0) .cse1 (<= |fibo1_#t~ret7| 5) (<= .cse0 8) (<= 6 |fibo1_#in~n|)) (and (<= |fibo1_#in~n| 3) .cse2 (<= 2 .cse0) (<= .cse0 2) .cse3 .cse1 (<= 3 |fibo1_#in~n|)) (and .cse2 (<= 1 .cse0) (<= |fibo1_#in~n| 2) .cse3 .cse1 (<= .cse0 1)) (and .cse1 (<= 9 |fibo1_#in~n|)) (and (<= 7 |fibo1_#in~n|) .cse1 (or (and (<= .cse0 21) (<= 13 |fibo1_#t~ret7|) (<= 21 .cse0) (<= |fibo1_#t~ret7| 13)) (<= |fibo1_#in~n| 7))) (and (<= .cse0 3) (<= 3 .cse0) (<= 4 |fibo1_#in~n|) .cse1 (<= |fibo1_#t~ret7| 2) (<= |fibo1_#in~n| 4) (<= 2 |fibo1_#t~ret7|))))) [2020-11-07 05:08:02,288 INFO L262 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (<= |fibo1_#in~n| 0) (= fibo1_~n |fibo1_#in~n|)) [2020-11-07 05:08:02,288 INFO L262 CegarLoopResult]: At program point L15-4(line 15) the Hoare annotation is: (and (not (<= |fibo1_#in~n| 1)) (let ((.cse2 (<= 1 |fibo1_#t~ret7|)) (.cse3 (<= |fibo1_#t~ret7| 1)) (.cse0 (+ |fibo1_#t~ret7| |fibo1_#t~ret8|)) (.cse1 (= fibo1_~n |fibo1_#in~n|))) (or (and (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret7|) (<= 5 .cse0) (<= 5 |fibo1_#in~n|) .cse1 (<= |fibo1_#t~ret7| 3) (<= .cse0 5)) (and (<= 5 |fibo1_#t~ret7|) (<= |fibo1_#in~n| 6) (<= 8 .cse0) .cse1 (<= |fibo1_#t~ret7| 5) (<= .cse0 8) (<= 6 |fibo1_#in~n|)) (and (<= |fibo1_#in~n| 3) .cse2 (<= 2 .cse0) (<= .cse0 2) .cse3 .cse1 (<= 3 |fibo1_#in~n|)) (and .cse2 (<= 1 .cse0) (<= |fibo1_#in~n| 2) .cse3 .cse1 (<= .cse0 1)) (and .cse1 (<= 9 |fibo1_#in~n|)) (and (<= 7 |fibo1_#in~n|) .cse1 (or (and (<= .cse0 21) (<= 13 |fibo1_#t~ret7|) (<= 21 .cse0) (<= |fibo1_#t~ret7| 13)) (<= |fibo1_#in~n| 7))) (and (<= .cse0 3) (<= 3 .cse0) (<= 4 |fibo1_#in~n|) .cse1 (<= |fibo1_#t~ret7| 2) (<= |fibo1_#in~n| 4) (<= 2 |fibo1_#t~ret7|))))) [2020-11-07 05:08:02,288 INFO L262 CegarLoopResult]: At program point fibo1FINAL(lines 9 17) the Hoare annotation is: (and (or (not (<= 3 |fibo1_#in~n|)) (<= 7 |fibo1_#in~n|) (and (<= 2 |fibo1_#res|) (<= |fibo1_#in~n| 3) (<= |fibo1_#res| 2)) (and (<= |fibo1_#in~n| 5) (<= 5 |fibo1_#in~n|) (<= 5 |fibo1_#res|) (<= |fibo1_#res| 5)) (and (<= 8 |fibo1_#res|) (<= |fibo1_#res| 8) (<= 6 |fibo1_#in~n|)) (and (<= |fibo1_#res| 3) (<= 3 |fibo1_#res|) (<= 4 |fibo1_#in~n|) (<= |fibo1_#in~n| 4))) (or (<= |fibo1_#in~n| 0) (and (<= |fibo1_#res| 1) (<= 1 |fibo1_#res|)) (not (<= |fibo1_#in~n| 2))) (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (or (and .cse0 (<= |fibo1_#in~n| 7)) (and .cse0 (<= 9 |fibo1_#in~n|)) (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) .cse0))) (or (and (<= 0 |fibo1_#res|) (<= |fibo1_#res| 0)) (< 0 fibo1_~n))) [2020-11-07 05:08:02,288 INFO L262 CegarLoopResult]: At program point L10(lines 10 16) the Hoare annotation is: (= fibo1_~n |fibo1_#in~n|) [2020-11-07 05:08:02,289 INFO L262 CegarLoopResult]: At program point L15-5(line 15) the Hoare annotation is: (let ((.cse1 (<= 4 |fibo1_#in~n|)) (.cse2 (<= |fibo1_#in~n| 2)) (.cse3 (<= 1 |fibo1_#t~ret7|)) (.cse4 (<= |fibo1_#t~ret7| 1)) (.cse0 (+ |fibo1_#t~ret7| |fibo1_#t~ret8|))) (and (not (<= |fibo1_#in~n| 1)) (or (and (<= 8 |fibo1_#res|) (<= 5 |fibo1_#t~ret7|) (<= |fibo1_#res| 8) (<= 8 .cse0) (<= |fibo1_#t~ret7| 5) (<= .cse0 8) (<= 6 |fibo1_#in~n|)) (and (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret7|) (<= 5 .cse0) (<= 5 |fibo1_#in~n|) (<= 5 |fibo1_#res|) (<= |fibo1_#res| 5) (<= |fibo1_#t~ret7| 3) (<= .cse0 5)) (and (<= |fibo1_#res| 3) (<= 3 |fibo1_#res|) (<= .cse0 3) (<= 3 .cse0) (<= |fibo1_#t~ret7| 2) (<= |fibo1_#in~n| 4) (<= 2 |fibo1_#t~ret7|)) (not (<= |fibo1_#in~n| 6)) (not .cse1)) (or .cse2 (and (<= 2 |fibo1_#res|) .cse3 (<= 2 .cse0) (<= .cse0 2) .cse4 (<= |fibo1_#res| 2)) .cse1) (or (not .cse2) (and .cse3 (<= 1 .cse0) .cse4 (<= |fibo1_#res| 1) (<= .cse0 1) (<= 1 |fibo1_#res|))) (let ((.cse5 (= fibo1_~n |fibo1_#in~n|))) (or (and (or (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) (<= .cse0 21) (<= 13 |fibo1_#t~ret7|) (<= 21 .cse0) (<= |fibo1_#t~ret7| 13)) (<= |fibo1_#in~n| 7)) .cse5) (and .cse5 (<= 9 |fibo1_#in~n|)))))) [2020-11-07 05:08:02,289 INFO L262 CegarLoopResult]: At program point L15-6(line 15) the Hoare annotation is: (let ((.cse0 (<= |fibo1_#in~n| 3))) (and (not (<= |fibo1_#in~n| 1)) (or (and (<= |fibo1_#in~n| 2) (<= |fibo1_#res| 1) (<= 1 |fibo1_#res|)) (and (<= 2 |fibo1_#res|) (<= |fibo1_#res| 2) (<= 3 |fibo1_#in~n|)) (not .cse0)) (or (not (<= |fibo1_#in~n| 6)) (and (<= |fibo1_#in~n| 5) (<= 5 |fibo1_#res|) (<= |fibo1_#res| 5)) (not (<= 5 |fibo1_#in~n|)) (and (<= 8 |fibo1_#res|) (<= |fibo1_#res| 8) (<= 6 |fibo1_#in~n|))) (let ((.cse1 (= fibo1_~n |fibo1_#in~n|))) (or (and .cse1 (<= |fibo1_#in~n| 7)) (and .cse1 (<= 9 |fibo1_#in~n|)) (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) .cse1))) (or (and (<= |fibo1_#res| 3) (<= 3 |fibo1_#res|)) .cse0 (not (<= |fibo1_#in~n| 4))))) [2020-11-07 05:08:02,289 INFO L262 CegarLoopResult]: At program point fibo1EXIT(lines 9 17) the Hoare annotation is: (and (or (not (<= 3 |fibo1_#in~n|)) (<= 7 |fibo1_#in~n|) (and (<= 2 |fibo1_#res|) (<= |fibo1_#in~n| 3) (<= |fibo1_#res| 2)) (and (<= |fibo1_#in~n| 5) (<= 5 |fibo1_#in~n|) (<= 5 |fibo1_#res|) (<= |fibo1_#res| 5)) (and (<= 8 |fibo1_#res|) (<= |fibo1_#res| 8) (<= 6 |fibo1_#in~n|)) (and (<= |fibo1_#res| 3) (<= 3 |fibo1_#res|) (<= 4 |fibo1_#in~n|) (<= |fibo1_#in~n| 4))) (or (<= |fibo1_#in~n| 0) (and (<= |fibo1_#res| 1) (<= 1 |fibo1_#res|)) (not (<= |fibo1_#in~n| 2))) (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (or (and .cse0 (<= |fibo1_#in~n| 7)) (and .cse0 (<= 9 |fibo1_#in~n|)) (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) .cse0))) (or (and (<= 0 |fibo1_#res|) (<= |fibo1_#res| 0)) (< 0 fibo1_~n))) [2020-11-07 05:08:02,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:08:02 BoogieIcfgContainer [2020-11-07 05:08:02,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 05:08:02,318 INFO L168 Benchmark]: Toolchain (without parser) took 154701.31 ms. Allocated memory was 125.8 MB in the beginning and 1.8 GB in the end (delta: 1.7 GB). Free memory was 102.3 MB in the beginning and 997.4 MB in the end (delta: -895.2 MB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2020-11-07 05:08:02,319 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 125.8 MB. Free memory is still 97.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 05:08:02,319 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.14 ms. Allocated memory is still 125.8 MB. Free memory was 101.6 MB in the beginning and 92.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-11-07 05:08:02,319 INFO L168 Benchmark]: Boogie Preprocessor took 33.63 ms. Allocated memory is still 125.8 MB. Free memory was 92.3 MB in the beginning and 90.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-07 05:08:02,320 INFO L168 Benchmark]: RCFGBuilder took 457.86 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 90.9 MB in the beginning and 127.4 MB in the end (delta: -36.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 8.0 GB. [2020-11-07 05:08:02,320 INFO L168 Benchmark]: TraceAbstraction took 153953.13 ms. Allocated memory was 151.0 MB in the beginning and 1.8 GB in the end (delta: 1.7 GB). Free memory was 127.0 MB in the beginning and 997.4 MB in the end (delta: -870.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2020-11-07 05:08:02,322 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 125.8 MB. Free memory is still 97.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 242.14 ms. Allocated memory is still 125.8 MB. Free memory was 101.6 MB in the beginning and 92.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.63 ms. Allocated memory is still 125.8 MB. Free memory was 92.3 MB in the beginning and 90.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 457.86 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 90.9 MB in the beginning and 127.4 MB in the end (delta: -36.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 153953.13 ms. Allocated memory was 151.0 MB in the beginning and 1.8 GB in the end (delta: 1.7 GB). Free memory was 127.0 MB in the beginning and 997.4 MB in the end (delta: -870.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 4]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 37]: Procedure Contract for main Derived contract for procedure main: 8 <= x - ProcedureContractResult [Line: 19]: Procedure Contract for fibo2 Derived contract for procedure fibo2: ((((!(\old(n) <= 4) || ((((4 <= \old(n) && \old(n) <= 4) && 3 <= \result) && \result <= 3) && n == \old(n))) || \old(n) <= 2) && (((n == \old(n) && \old(n) <= 0) || (1 <= \result && \result <= 1)) || !(\old(n) <= 3))) && (((((((13 <= \result && 7 <= \old(n)) && \result <= 13) || !(4 <= \old(n))) || ((((4 <= \old(n) && \old(n) <= 4) && 3 <= \result) && \result <= 3) && n == \old(n))) || (((n <= 6 && \result <= 8) && 6 <= n) && 8 <= \result)) || ((\result <= 5 && \old(n) <= 5) && 5 <= \result)) || (n == \old(n) && 8 <= \old(n)))) && ((n == \old(n) && 0 < n) || (\result <= 0 && 0 <= \result)) - ProcedureContractResult [Line: 9]: Procedure Contract for fibo1 Derived contract for procedure fibo1: (((((((!(3 <= \old(n)) || 7 <= \old(n)) || ((2 <= \result && \old(n) <= 3) && \result <= 2)) || (((\old(n) <= 5 && 5 <= \old(n)) && 5 <= \result) && \result <= 5)) || ((8 <= \result && \result <= 8) && 6 <= \old(n))) || (((\result <= 3 && 3 <= \result) && 4 <= \old(n)) && \old(n) <= 4)) && ((\old(n) <= 0 || (\result <= 1 && 1 <= \result)) || !(\old(n) <= 2))) && (((n == \old(n) && \old(n) <= 7) || (n == \old(n) && 9 <= \old(n))) || ((\result <= 21 && 21 <= \result) && n == \old(n)))) && ((0 <= \result && \result <= 0) || 0 < n) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 73.2s, OverallIterations: 24, TraceHistogramMax: 76, AutomataDifference: 46.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 80.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1496 SDtfs, 3013 SDslu, 4324 SDs, 0 SdLazy, 18750 SolverSat, 1738 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2451 GetRequests, 1740 SyntacticMatches, 0 SemanticMatches, 711 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7535 ImplicationChecksByTransitivity, 28.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=473occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 24 MinimizatonAttempts, 537 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 57 LocationsWithAnnotation, 6547 PreInvPairs, 18714 NumberOfFragments, 2322 HoareAnnotationTreeSize, 6547 FomulaSimplifications, 4846229 FormulaSimplificationTreeSizeReduction, 44.3s HoareSimplificationTime, 57 FomulaSimplificationsInter, 569223 FormulaSimplificationTreeSizeReductionInter, 35.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 21.2s InterpolantComputationTime, 7256 NumberOfCodeBlocks, 7256 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 7232 ConstructedInterpolants, 0 QuantifiedInterpolants, 7334302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 2 PerfectInterpolantSequences, 70056/85410 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...