/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive/Addition03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:25:32,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:25:32,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:25:32,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 00:25:32,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:25:32,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:25:32,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:25:32,831 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 00:25:32,863 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:25:32,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:25:32,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:25:32,865 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:25:32,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:25:32,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:25:32,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:25:32,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:25:32,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:25:32,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:25:32,867 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:25:32,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:25:32,867 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:25:32,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:25:32,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:25:32,868 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:25:32,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:25:32,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:25:32,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:25:32,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:25:32,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:25:32,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:25:32,870 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:25:33,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:25:33,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:25:33,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:25:33,272 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:25:33,273 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:25:33,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition03-1.c [2020-11-07 00:25:33,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49cb5da67/02c7cf73c6eb4786a83862ed236f5001/FLAG75e750037 [2020-11-07 00:25:33,974 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:25:33,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Addition03-1.c [2020-11-07 00:25:33,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49cb5da67/02c7cf73c6eb4786a83862ed236f5001/FLAG75e750037 [2020-11-07 00:25:34,370 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49cb5da67/02c7cf73c6eb4786a83862ed236f5001 [2020-11-07 00:25:34,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:25:34,384 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:25:34,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:25:34,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:25:34,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:25:34,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:34" (1/1) ... [2020-11-07 00:25:34,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9ad935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:34, skipping insertion in model container [2020-11-07 00:25:34,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:25:34" (1/1) ... [2020-11-07 00:25:34,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:25:34,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:25:34,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:25:34,669 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:25:34,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:25:34,708 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:25:34,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:34 WrapperNode [2020-11-07 00:25:34,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:25:34,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:25:34,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:25:34,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:25:34,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:34" (1/1) ... [2020-11-07 00:25:34,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:34" (1/1) ... [2020-11-07 00:25:34,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:34" (1/1) ... [2020-11-07 00:25:34,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:34" (1/1) ... [2020-11-07 00:25:34,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:34" (1/1) ... [2020-11-07 00:25:34,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:34" (1/1) ... [2020-11-07 00:25:34,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:34" (1/1) ... [2020-11-07 00:25:34,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:25:34,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:25:34,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:25:34,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:25:34,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:34" (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 00:25:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:25:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:25:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:25:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-11-07 00:25:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:25:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:25:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:25:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:25:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:25:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:25:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-11-07 00:25:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:25:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:25:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:25:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:25:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:25:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:25:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:25:35,441 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:25:35,441 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-07 00:25:35,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:35 BoogieIcfgContainer [2020-11-07 00:25:35,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:25:35,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:25:35,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:25:35,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:25:35,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:25:34" (1/3) ... [2020-11-07 00:25:35,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@352135c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:35, skipping insertion in model container [2020-11-07 00:25:35,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:25:34" (2/3) ... [2020-11-07 00:25:35,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@352135c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:25:35, skipping insertion in model container [2020-11-07 00:25:35,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:25:35" (3/3) ... [2020-11-07 00:25:35,462 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2020-11-07 00:25:35,479 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:25:35,483 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 00:25:35,498 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 00:25:35,535 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:25:35,535 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:25:35,535 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:25:35,535 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:25:35,536 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:25:35,536 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:25:35,536 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:25:35,536 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:25:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-11-07 00:25:35,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-07 00:25:35,572 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:35,573 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:25:35,574 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:35,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:35,584 INFO L82 PathProgramCache]: Analyzing trace with hash -326655385, now seen corresponding path program 1 times [2020-11-07 00:25:35,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:35,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685836401] [2020-11-07 00:25:35,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:35,686 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:35,999 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 00:25:36,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685836401] [2020-11-07 00:25:36,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:36,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:25:36,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099057764] [2020-11-07 00:25:36,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:25:36,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:36,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:25:36,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:25:36,026 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 6 states. [2020-11-07 00:25:36,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:36,428 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2020-11-07 00:25:36,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 00:25:36,431 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-11-07 00:25:36,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:36,441 INFO L225 Difference]: With dead ends: 66 [2020-11-07 00:25:36,441 INFO L226 Difference]: Without dead ends: 44 [2020-11-07 00:25:36,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 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 00:25:36,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-11-07 00:25:36,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-11-07 00:25:36,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-07 00:25:36,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-11-07 00:25:36,527 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 31 [2020-11-07 00:25:36,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:36,527 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-11-07 00:25:36,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:25:36,528 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-11-07 00:25:36,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-07 00:25:36,531 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:36,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:25:36,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:25:36,532 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:36,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:36,533 INFO L82 PathProgramCache]: Analyzing trace with hash 521128098, now seen corresponding path program 1 times [2020-11-07 00:25:36,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:36,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1151506685] [2020-11-07 00:25:36,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:36,536 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:36,650 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 00:25:36,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1151506685] [2020-11-07 00:25:36,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:36,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 00:25:36,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245017461] [2020-11-07 00:25:36,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 00:25:36,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:36,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 00:25:36,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:25:36,654 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 5 states. [2020-11-07 00:25:36,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:36,837 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2020-11-07 00:25:36,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:25:36,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-07 00:25:36,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:36,840 INFO L225 Difference]: With dead ends: 61 [2020-11-07 00:25:36,840 INFO L226 Difference]: Without dead ends: 46 [2020-11-07 00:25:36,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:25:36,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-07 00:25:36,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-11-07 00:25:36,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-07 00:25:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-11-07 00:25:36,859 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 32 [2020-11-07 00:25:36,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:36,860 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-11-07 00:25:36,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 00:25:36,862 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-11-07 00:25:36,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-07 00:25:36,864 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:36,865 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:25:36,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:25:36,867 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:36,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:36,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1532374569, now seen corresponding path program 1 times [2020-11-07 00:25:36,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:36,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024080489] [2020-11-07 00:25:36,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:36,877 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:37,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:37,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:37,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:37,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-07 00:25:37,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024080489] [2020-11-07 00:25:37,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:37,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 00:25:37,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75523937] [2020-11-07 00:25:37,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 00:25:37,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:37,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 00:25:37,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:25:37,170 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 7 states. [2020-11-07 00:25:37,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:37,564 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2020-11-07 00:25:37,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 00:25:37,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-11-07 00:25:37,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:37,567 INFO L225 Difference]: With dead ends: 56 [2020-11-07 00:25:37,567 INFO L226 Difference]: Without dead ends: 49 [2020-11-07 00:25:37,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:25:37,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-11-07 00:25:37,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-11-07 00:25:37,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-07 00:25:37,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2020-11-07 00:25:37,585 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 41 [2020-11-07 00:25:37,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:37,586 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2020-11-07 00:25:37,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 00:25:37,586 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2020-11-07 00:25:37,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-07 00:25:37,588 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:37,589 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-11-07 00:25:37,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:25:37,589 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:37,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:37,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1541604007, now seen corresponding path program 2 times [2020-11-07 00:25:37,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:37,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534098950] [2020-11-07 00:25:37,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:37,593 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:37,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:37,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:37,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:37,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-07 00:25:37,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534098950] [2020-11-07 00:25:37,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:37,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 00:25:37,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200185824] [2020-11-07 00:25:37,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 00:25:37,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:37,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 00:25:37,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-07 00:25:37,780 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand 8 states. [2020-11-07 00:25:38,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:38,455 INFO L93 Difference]: Finished difference Result 76 states and 90 transitions. [2020-11-07 00:25:38,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 00:25:38,456 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-11-07 00:25:38,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:38,460 INFO L225 Difference]: With dead ends: 76 [2020-11-07 00:25:38,460 INFO L226 Difference]: Without dead ends: 69 [2020-11-07 00:25:38,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-11-07 00:25:38,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-07 00:25:38,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-11-07 00:25:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-07 00:25:38,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 83 transitions. [2020-11-07 00:25:38,483 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 83 transitions. Word has length 51 [2020-11-07 00:25:38,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:38,484 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 83 transitions. [2020-11-07 00:25:38,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 00:25:38,484 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 83 transitions. [2020-11-07 00:25:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-07 00:25:38,487 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:38,488 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:25:38,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:25:38,488 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:38,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1542251497, now seen corresponding path program 3 times [2020-11-07 00:25:38,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:38,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404297903] [2020-11-07 00:25:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:38,492 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:38,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:38,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:38,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:38,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:38,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:38,699 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-07 00:25:38,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404297903] [2020-11-07 00:25:38,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:38,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:25:38,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610879094] [2020-11-07 00:25:38,701 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:25:38,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:38,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:25:38,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:25:38,702 INFO L87 Difference]: Start difference. First operand 69 states and 83 transitions. Second operand 9 states. [2020-11-07 00:25:39,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:39,410 INFO L93 Difference]: Finished difference Result 81 states and 95 transitions. [2020-11-07 00:25:39,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 00:25:39,412 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2020-11-07 00:25:39,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:39,414 INFO L225 Difference]: With dead ends: 81 [2020-11-07 00:25:39,414 INFO L226 Difference]: Without dead ends: 74 [2020-11-07 00:25:39,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:25:39,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-11-07 00:25:39,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-11-07 00:25:39,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-11-07 00:25:39,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 88 transitions. [2020-11-07 00:25:39,442 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 88 transitions. Word has length 61 [2020-11-07 00:25:39,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:39,443 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 88 transitions. [2020-11-07 00:25:39,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:25:39,443 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 88 transitions. [2020-11-07 00:25:39,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-11-07 00:25:39,446 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:39,447 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:25:39,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:25:39,447 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:39,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:39,448 INFO L82 PathProgramCache]: Analyzing trace with hash -504999193, now seen corresponding path program 4 times [2020-11-07 00:25:39,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:39,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753508356] [2020-11-07 00:25:39,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:39,451 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:39,649 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-11-07 00:25:39,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753508356] [2020-11-07 00:25:39,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:39,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:25:39,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143114912] [2020-11-07 00:25:39,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:25:39,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:39,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:25:39,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:25:39,652 INFO L87 Difference]: Start difference. First operand 74 states and 88 transitions. Second operand 10 states. [2020-11-07 00:25:40,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:40,376 INFO L93 Difference]: Finished difference Result 86 states and 100 transitions. [2020-11-07 00:25:40,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:25:40,377 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-11-07 00:25:40,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:40,381 INFO L225 Difference]: With dead ends: 86 [2020-11-07 00:25:40,384 INFO L226 Difference]: Without dead ends: 79 [2020-11-07 00:25:40,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-07 00:25:40,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-11-07 00:25:40,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-11-07 00:25:40,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-07 00:25:40,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2020-11-07 00:25:40,412 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 71 [2020-11-07 00:25:40,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:40,412 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2020-11-07 00:25:40,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:25:40,413 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2020-11-07 00:25:40,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-11-07 00:25:40,415 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:40,415 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 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 00:25:40,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:25:40,416 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:40,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:40,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1878087255, now seen corresponding path program 5 times [2020-11-07 00:25:40,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:40,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349852101] [2020-11-07 00:25:40,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:40,420 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:40,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:40,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:40,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:40,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:40,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:40,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:40,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:40,664 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-11-07 00:25:40,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349852101] [2020-11-07 00:25:40,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:40,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-07 00:25:40,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719922571] [2020-11-07 00:25:40,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 00:25:40,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:40,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 00:25:40,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:25:40,667 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand 11 states. [2020-11-07 00:25:41,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:41,406 INFO L93 Difference]: Finished difference Result 91 states and 105 transitions. [2020-11-07 00:25:41,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-07 00:25:41,406 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2020-11-07 00:25:41,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:41,408 INFO L225 Difference]: With dead ends: 91 [2020-11-07 00:25:41,409 INFO L226 Difference]: Without dead ends: 84 [2020-11-07 00:25:41,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2020-11-07 00:25:41,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-07 00:25:41,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-11-07 00:25:41,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-07 00:25:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 98 transitions. [2020-11-07 00:25:41,431 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 98 transitions. Word has length 81 [2020-11-07 00:25:41,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:41,431 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 98 transitions. [2020-11-07 00:25:41,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 00:25:41,432 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 98 transitions. [2020-11-07 00:25:41,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-11-07 00:25:41,434 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:41,435 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 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 00:25:41,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 00:25:41,435 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:41,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:41,436 INFO L82 PathProgramCache]: Analyzing trace with hash 658871079, now seen corresponding path program 6 times [2020-11-07 00:25:41,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:41,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124424541] [2020-11-07 00:25:41,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:41,438 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:41,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:41,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:41,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:41,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:41,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:41,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:41,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:41,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-11-07 00:25:41,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124424541] [2020-11-07 00:25:41,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:41,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-07 00:25:41,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566149347] [2020-11-07 00:25:41,726 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-07 00:25:41,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:41,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-07 00:25:41,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-11-07 00:25:41,727 INFO L87 Difference]: Start difference. First operand 84 states and 98 transitions. Second operand 12 states. [2020-11-07 00:25:42,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:42,531 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2020-11-07 00:25:42,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:25:42,531 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2020-11-07 00:25:42,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:42,534 INFO L225 Difference]: With dead ends: 96 [2020-11-07 00:25:42,534 INFO L226 Difference]: Without dead ends: 89 [2020-11-07 00:25:42,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2020-11-07 00:25:42,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-07 00:25:42,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2020-11-07 00:25:42,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-07 00:25:42,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 103 transitions. [2020-11-07 00:25:42,577 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 103 transitions. Word has length 91 [2020-11-07 00:25:42,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:42,578 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 103 transitions. [2020-11-07 00:25:42,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-07 00:25:42,578 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 103 transitions. [2020-11-07 00:25:42,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-11-07 00:25:42,581 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:42,581 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 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 00:25:42,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 00:25:42,582 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:42,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:42,582 INFO L82 PathProgramCache]: Analyzing trace with hash -553156759, now seen corresponding path program 7 times [2020-11-07 00:25:42,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:42,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345253947] [2020-11-07 00:25:42,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:42,588 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:42,928 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-11-07 00:25:42,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345253947] [2020-11-07 00:25:42,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:42,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-07 00:25:42,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547288863] [2020-11-07 00:25:42,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 00:25:42,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:42,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 00:25:42,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-11-07 00:25:42,931 INFO L87 Difference]: Start difference. First operand 89 states and 103 transitions. Second operand 13 states. [2020-11-07 00:25:43,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:43,752 INFO L93 Difference]: Finished difference Result 101 states and 115 transitions. [2020-11-07 00:25:43,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 00:25:43,753 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 101 [2020-11-07 00:25:43,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:43,755 INFO L225 Difference]: With dead ends: 101 [2020-11-07 00:25:43,755 INFO L226 Difference]: Without dead ends: 94 [2020-11-07 00:25:43,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=412, Unknown=0, NotChecked=0, Total=600 [2020-11-07 00:25:43,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-11-07 00:25:43,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-11-07 00:25:43,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-11-07 00:25:43,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2020-11-07 00:25:43,796 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 101 [2020-11-07 00:25:43,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:43,798 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2020-11-07 00:25:43,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 00:25:43,798 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2020-11-07 00:25:43,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-11-07 00:25:43,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:43,802 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:25:43,802 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 00:25:43,802 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:43,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:43,803 INFO L82 PathProgramCache]: Analyzing trace with hash -743128217, now seen corresponding path program 8 times [2020-11-07 00:25:43,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:43,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745441599] [2020-11-07 00:25:43,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:43,807 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:43,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:43,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:43,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:43,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:43,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:44,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:44,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:44,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:44,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:44,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:44,220 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2020-11-07 00:25:44,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745441599] [2020-11-07 00:25:44,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:44,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-07 00:25:44,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278157470] [2020-11-07 00:25:44,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 00:25:44,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:44,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 00:25:44,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-11-07 00:25:44,223 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand 14 states. [2020-11-07 00:25:45,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:45,094 INFO L93 Difference]: Finished difference Result 106 states and 120 transitions. [2020-11-07 00:25:45,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 00:25:45,095 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 111 [2020-11-07 00:25:45,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:45,098 INFO L225 Difference]: With dead ends: 106 [2020-11-07 00:25:45,098 INFO L226 Difference]: Without dead ends: 99 [2020-11-07 00:25:45,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2020-11-07 00:25:45,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-11-07 00:25:45,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-11-07 00:25:45,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-07 00:25:45,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2020-11-07 00:25:45,135 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 111 [2020-11-07 00:25:45,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:45,135 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2020-11-07 00:25:45,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 00:25:45,136 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2020-11-07 00:25:45,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-11-07 00:25:45,139 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:45,139 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 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 00:25:45,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 00:25:45,139 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:45,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:45,140 INFO L82 PathProgramCache]: Analyzing trace with hash -786209495, now seen corresponding path program 9 times [2020-11-07 00:25:45,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:45,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496332882] [2020-11-07 00:25:45,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:45,146 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2020-11-07 00:25:45,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496332882] [2020-11-07 00:25:45,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:45,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-11-07 00:25:45,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641409096] [2020-11-07 00:25:45,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-07 00:25:45,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:45,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-07 00:25:45,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2020-11-07 00:25:45,618 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 15 states. [2020-11-07 00:25:46,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:46,569 INFO L93 Difference]: Finished difference Result 111 states and 125 transitions. [2020-11-07 00:25:46,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 00:25:46,569 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 121 [2020-11-07 00:25:46,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:46,571 INFO L225 Difference]: With dead ends: 111 [2020-11-07 00:25:46,571 INFO L226 Difference]: Without dead ends: 104 [2020-11-07 00:25:46,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=259, Invalid=553, Unknown=0, NotChecked=0, Total=812 [2020-11-07 00:25:46,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-11-07 00:25:46,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-11-07 00:25:46,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-11-07 00:25:46,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2020-11-07 00:25:46,601 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 121 [2020-11-07 00:25:46,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:46,603 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2020-11-07 00:25:46,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-07 00:25:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2020-11-07 00:25:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-11-07 00:25:46,606 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:46,607 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 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 00:25:46,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 00:25:46,607 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:46,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:46,607 INFO L82 PathProgramCache]: Analyzing trace with hash -840440921, now seen corresponding path program 10 times [2020-11-07 00:25:46,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:46,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437770802] [2020-11-07 00:25:46,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:46,612 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:46,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:47,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:47,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:47,180 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-11-07 00:25:47,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437770802] [2020-11-07 00:25:47,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:47,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-11-07 00:25:47,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802157737] [2020-11-07 00:25:47,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-07 00:25:47,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:47,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-07 00:25:47,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:25:47,184 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 16 states. [2020-11-07 00:25:48,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:48,172 INFO L93 Difference]: Finished difference Result 116 states and 130 transitions. [2020-11-07 00:25:48,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-07 00:25:48,173 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 131 [2020-11-07 00:25:48,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:48,174 INFO L225 Difference]: With dead ends: 116 [2020-11-07 00:25:48,175 INFO L226 Difference]: Without dead ends: 109 [2020-11-07 00:25:48,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=299, Invalid=631, Unknown=0, NotChecked=0, Total=930 [2020-11-07 00:25:48,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-07 00:25:48,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-11-07 00:25:48,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-11-07 00:25:48,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 123 transitions. [2020-11-07 00:25:48,194 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 123 transitions. Word has length 131 [2020-11-07 00:25:48,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:48,194 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 123 transitions. [2020-11-07 00:25:48,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-07 00:25:48,194 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 123 transitions. [2020-11-07 00:25:48,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-11-07 00:25:48,196 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:48,197 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 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 00:25:48,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 00:25:48,197 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:48,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:48,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1336826601, now seen corresponding path program 11 times [2020-11-07 00:25:48,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:48,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380228974] [2020-11-07 00:25:48,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:48,200 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:48,800 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2020-11-07 00:25:48,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380228974] [2020-11-07 00:25:48,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:48,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-11-07 00:25:48,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370129350] [2020-11-07 00:25:48,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 00:25:48,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:48,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 00:25:48,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:25:48,802 INFO L87 Difference]: Start difference. First operand 109 states and 123 transitions. Second operand 17 states. [2020-11-07 00:25:49,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:49,832 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2020-11-07 00:25:49,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 00:25:49,833 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 141 [2020-11-07 00:25:49,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:49,835 INFO L225 Difference]: With dead ends: 121 [2020-11-07 00:25:49,835 INFO L226 Difference]: Without dead ends: 114 [2020-11-07 00:25:49,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=342, Invalid=714, Unknown=0, NotChecked=0, Total=1056 [2020-11-07 00:25:49,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-07 00:25:49,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-11-07 00:25:49,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-11-07 00:25:49,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 128 transitions. [2020-11-07 00:25:49,855 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 128 transitions. Word has length 141 [2020-11-07 00:25:49,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:49,856 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 128 transitions. [2020-11-07 00:25:49,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 00:25:49,856 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 128 transitions. [2020-11-07 00:25:49,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-11-07 00:25:49,858 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:49,858 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 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 00:25:49,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-07 00:25:49,859 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:49,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:49,859 INFO L82 PathProgramCache]: Analyzing trace with hash 2073228263, now seen corresponding path program 12 times [2020-11-07 00:25:49,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:49,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435581233] [2020-11-07 00:25:49,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:49,862 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:49,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:49,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:49,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:50,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:50,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:50,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:50,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:50,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:50,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:50,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:50,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:50,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:50,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:50,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:50,539 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2020-11-07 00:25:50,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435581233] [2020-11-07 00:25:50,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:50,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-11-07 00:25:50,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774346923] [2020-11-07 00:25:50,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-11-07 00:25:50,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:50,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-07 00:25:50,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=195, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:25:50,543 INFO L87 Difference]: Start difference. First operand 114 states and 128 transitions. Second operand 18 states. [2020-11-07 00:25:51,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:51,616 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2020-11-07 00:25:51,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-07 00:25:51,616 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 151 [2020-11-07 00:25:51,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:51,619 INFO L225 Difference]: With dead ends: 126 [2020-11-07 00:25:51,619 INFO L226 Difference]: Without dead ends: 119 [2020-11-07 00:25:51,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=388, Invalid=802, Unknown=0, NotChecked=0, Total=1190 [2020-11-07 00:25:51,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-11-07 00:25:51,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-11-07 00:25:51,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-11-07 00:25:51,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2020-11-07 00:25:51,638 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 151 [2020-11-07 00:25:51,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:51,639 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2020-11-07 00:25:51,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-11-07 00:25:51,639 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2020-11-07 00:25:51,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-11-07 00:25:51,641 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:51,641 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 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 00:25:51,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-07 00:25:51,642 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:51,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:51,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1693737129, now seen corresponding path program 13 times [2020-11-07 00:25:51,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:51,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939542748] [2020-11-07 00:25:51,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:51,645 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:51,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:51,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:51,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:51,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:51,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:51,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:51,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2020-11-07 00:25:52,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [939542748] [2020-11-07 00:25:52,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:52,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-11-07 00:25:52,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705480414] [2020-11-07 00:25:52,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-07 00:25:52,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:52,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-07 00:25:52,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=216, Unknown=0, NotChecked=0, Total=342 [2020-11-07 00:25:52,423 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand 19 states. [2020-11-07 00:25:53,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:53,717 INFO L93 Difference]: Finished difference Result 131 states and 145 transitions. [2020-11-07 00:25:53,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-07 00:25:53,717 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 161 [2020-11-07 00:25:53,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:53,721 INFO L225 Difference]: With dead ends: 131 [2020-11-07 00:25:53,721 INFO L226 Difference]: Without dead ends: 124 [2020-11-07 00:25:53,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=437, Invalid=895, Unknown=0, NotChecked=0, Total=1332 [2020-11-07 00:25:53,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-11-07 00:25:53,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-11-07 00:25:53,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-07 00:25:53,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 138 transitions. [2020-11-07 00:25:53,746 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 138 transitions. Word has length 161 [2020-11-07 00:25:53,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:53,746 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 138 transitions. [2020-11-07 00:25:53,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-07 00:25:53,747 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 138 transitions. [2020-11-07 00:25:53,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-11-07 00:25:53,748 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:53,749 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 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 00:25:53,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-07 00:25:53,749 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:53,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:53,749 INFO L82 PathProgramCache]: Analyzing trace with hash 23720999, now seen corresponding path program 14 times [2020-11-07 00:25:53,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:53,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1941125785] [2020-11-07 00:25:53,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:53,756 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:53,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:53,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:53,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:53,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:53,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:54,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:54,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:54,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:54,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:54,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:54,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:54,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:54,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:54,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:54,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:54,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:54,620 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2020-11-07 00:25:54,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1941125785] [2020-11-07 00:25:54,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:54,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-11-07 00:25:54,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083519498] [2020-11-07 00:25:54,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-11-07 00:25:54,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:54,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-11-07 00:25:54,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=238, Unknown=0, NotChecked=0, Total=380 [2020-11-07 00:25:54,623 INFO L87 Difference]: Start difference. First operand 124 states and 138 transitions. Second operand 20 states. [2020-11-07 00:25:55,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:55,809 INFO L93 Difference]: Finished difference Result 136 states and 150 transitions. [2020-11-07 00:25:55,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-07 00:25:55,809 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 171 [2020-11-07 00:25:55,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:55,812 INFO L225 Difference]: With dead ends: 136 [2020-11-07 00:25:55,812 INFO L226 Difference]: Without dead ends: 129 [2020-11-07 00:25:55,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=489, Invalid=993, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 00:25:55,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-11-07 00:25:55,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2020-11-07 00:25:55,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-11-07 00:25:55,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 143 transitions. [2020-11-07 00:25:55,836 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 143 transitions. Word has length 171 [2020-11-07 00:25:55,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:55,837 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 143 transitions. [2020-11-07 00:25:55,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-11-07 00:25:55,837 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 143 transitions. [2020-11-07 00:25:55,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-11-07 00:25:55,840 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:55,840 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 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 00:25:55,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-07 00:25:55,840 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:55,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:55,841 INFO L82 PathProgramCache]: Analyzing trace with hash -62818711, now seen corresponding path program 15 times [2020-11-07 00:25:55,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:55,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77104615] [2020-11-07 00:25:55,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:55,846 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:55,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:55,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:55,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2020-11-07 00:25:56,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77104615] [2020-11-07 00:25:56,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:56,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-11-07 00:25:56,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079203648] [2020-11-07 00:25:56,805 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-07 00:25:56,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:56,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-07 00:25:56,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=261, Unknown=0, NotChecked=0, Total=420 [2020-11-07 00:25:56,806 INFO L87 Difference]: Start difference. First operand 129 states and 143 transitions. Second operand 21 states. [2020-11-07 00:25:58,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:25:58,087 INFO L93 Difference]: Finished difference Result 141 states and 155 transitions. [2020-11-07 00:25:58,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-11-07 00:25:58,089 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 181 [2020-11-07 00:25:58,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:25:58,092 INFO L225 Difference]: With dead ends: 141 [2020-11-07 00:25:58,092 INFO L226 Difference]: Without dead ends: 134 [2020-11-07 00:25:58,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=544, Invalid=1096, Unknown=0, NotChecked=0, Total=1640 [2020-11-07 00:25:58,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-11-07 00:25:58,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-11-07 00:25:58,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-07 00:25:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 148 transitions. [2020-11-07 00:25:58,112 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 148 transitions. Word has length 181 [2020-11-07 00:25:58,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:25:58,113 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 148 transitions. [2020-11-07 00:25:58,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-07 00:25:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 148 transitions. [2020-11-07 00:25:58,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-11-07 00:25:58,114 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:25:58,115 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 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 00:25:58,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-07 00:25:58,115 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:25:58,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:25:58,115 INFO L82 PathProgramCache]: Analyzing trace with hash -2094996377, now seen corresponding path program 16 times [2020-11-07 00:25:58,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:25:58,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391121507] [2020-11-07 00:25:58,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:25:58,118 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:25:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:25:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:25:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:58,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:25:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:25:59,147 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2020-11-07 00:25:59,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391121507] [2020-11-07 00:25:59,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:25:59,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-11-07 00:25:59,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538748105] [2020-11-07 00:25:59,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-11-07 00:25:59,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:25:59,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-07 00:25:59,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=285, Unknown=0, NotChecked=0, Total=462 [2020-11-07 00:25:59,153 INFO L87 Difference]: Start difference. First operand 134 states and 148 transitions. Second operand 22 states. [2020-11-07 00:26:00,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:00,519 INFO L93 Difference]: Finished difference Result 146 states and 160 transitions. [2020-11-07 00:26:00,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-07 00:26:00,519 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 191 [2020-11-07 00:26:00,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:00,521 INFO L225 Difference]: With dead ends: 146 [2020-11-07 00:26:00,521 INFO L226 Difference]: Without dead ends: 139 [2020-11-07 00:26:00,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=602, Invalid=1204, Unknown=0, NotChecked=0, Total=1806 [2020-11-07 00:26:00,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-11-07 00:26:00,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2020-11-07 00:26:00,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-11-07 00:26:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2020-11-07 00:26:00,542 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 191 [2020-11-07 00:26:00,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:00,543 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2020-11-07 00:26:00,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-11-07 00:26:00,543 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2020-11-07 00:26:00,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-11-07 00:26:00,544 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:00,544 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 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 00:26:00,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-07 00:26:00,545 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:00,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:00,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1579049943, now seen corresponding path program 17 times [2020-11-07 00:26:00,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:00,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1096592599] [2020-11-07 00:26:00,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:00,548 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:00,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:00,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:00,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:00,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:00,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:00,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:00,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:00,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:01,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:01,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:01,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:01,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:01,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:01,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:01,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:01,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:01,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:01,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:01,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:01,672 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2020-11-07 00:26:01,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1096592599] [2020-11-07 00:26:01,672 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:01,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-11-07 00:26:01,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51832943] [2020-11-07 00:26:01,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-11-07 00:26:01,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:01,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-11-07 00:26:01,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=310, Unknown=0, NotChecked=0, Total=506 [2020-11-07 00:26:01,674 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand 23 states. [2020-11-07 00:26:03,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:03,114 INFO L93 Difference]: Finished difference Result 151 states and 165 transitions. [2020-11-07 00:26:03,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-07 00:26:03,115 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 201 [2020-11-07 00:26:03,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:03,117 INFO L225 Difference]: With dead ends: 151 [2020-11-07 00:26:03,117 INFO L226 Difference]: Without dead ends: 144 [2020-11-07 00:26:03,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=663, Invalid=1317, Unknown=0, NotChecked=0, Total=1980 [2020-11-07 00:26:03,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-07 00:26:03,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-11-07 00:26:03,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-07 00:26:03,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 158 transitions. [2020-11-07 00:26:03,139 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 158 transitions. Word has length 201 [2020-11-07 00:26:03,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:03,139 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 158 transitions. [2020-11-07 00:26:03,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-11-07 00:26:03,140 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 158 transitions. [2020-11-07 00:26:03,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-11-07 00:26:03,141 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:03,141 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 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 00:26:03,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-07 00:26:03,142 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:03,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:03,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1668007079, now seen corresponding path program 18 times [2020-11-07 00:26:03,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:03,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [462534621] [2020-11-07 00:26:03,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:03,145 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:03,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:04,341 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2020-11-07 00:26:04,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [462534621] [2020-11-07 00:26:04,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:04,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-11-07 00:26:04,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112163092] [2020-11-07 00:26:04,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-11-07 00:26:04,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:04,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-11-07 00:26:04,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=336, Unknown=0, NotChecked=0, Total=552 [2020-11-07 00:26:04,344 INFO L87 Difference]: Start difference. First operand 144 states and 158 transitions. Second operand 24 states. [2020-11-07 00:26:05,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:05,896 INFO L93 Difference]: Finished difference Result 156 states and 170 transitions. [2020-11-07 00:26:05,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-07 00:26:05,897 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 211 [2020-11-07 00:26:05,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:05,900 INFO L225 Difference]: With dead ends: 156 [2020-11-07 00:26:05,900 INFO L226 Difference]: Without dead ends: 149 [2020-11-07 00:26:05,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=727, Invalid=1435, Unknown=0, NotChecked=0, Total=2162 [2020-11-07 00:26:05,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-11-07 00:26:05,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-11-07 00:26:05,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-11-07 00:26:05,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 163 transitions. [2020-11-07 00:26:05,923 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 163 transitions. Word has length 211 [2020-11-07 00:26:05,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:05,923 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 163 transitions. [2020-11-07 00:26:05,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-11-07 00:26:05,923 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 163 transitions. [2020-11-07 00:26:05,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-11-07 00:26:05,925 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:05,925 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 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 00:26:05,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-07 00:26:05,926 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:05,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:05,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1126224361, now seen corresponding path program 19 times [2020-11-07 00:26:05,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:05,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [658517330] [2020-11-07 00:26:05,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:05,929 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:06,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:07,201 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 912 trivial. 0 not checked. [2020-11-07 00:26:07,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [658517330] [2020-11-07 00:26:07,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:07,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-11-07 00:26:07,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714001077] [2020-11-07 00:26:07,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-11-07 00:26:07,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:07,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-11-07 00:26:07,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=363, Unknown=0, NotChecked=0, Total=600 [2020-11-07 00:26:07,204 INFO L87 Difference]: Start difference. First operand 149 states and 163 transitions. Second operand 25 states. [2020-11-07 00:26:08,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:08,812 INFO L93 Difference]: Finished difference Result 161 states and 175 transitions. [2020-11-07 00:26:08,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-07 00:26:08,813 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 221 [2020-11-07 00:26:08,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:08,815 INFO L225 Difference]: With dead ends: 161 [2020-11-07 00:26:08,816 INFO L226 Difference]: Without dead ends: 154 [2020-11-07 00:26:08,817 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=794, Invalid=1558, Unknown=0, NotChecked=0, Total=2352 [2020-11-07 00:26:08,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-11-07 00:26:08,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-11-07 00:26:08,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-11-07 00:26:08,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 168 transitions. [2020-11-07 00:26:08,838 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 168 transitions. Word has length 221 [2020-11-07 00:26:08,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:08,839 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 168 transitions. [2020-11-07 00:26:08,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-11-07 00:26:08,839 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 168 transitions. [2020-11-07 00:26:08,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-11-07 00:26:08,841 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:08,841 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 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 00:26:08,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-07 00:26:08,841 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:08,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:08,842 INFO L82 PathProgramCache]: Analyzing trace with hash -2080467737, now seen corresponding path program 20 times [2020-11-07 00:26:08,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:08,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394592817] [2020-11-07 00:26:08,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:08,845 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:08,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:09,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:10,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2020-11-07 00:26:10,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394592817] [2020-11-07 00:26:10,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:10,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-11-07 00:26:10,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277164532] [2020-11-07 00:26:10,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-11-07 00:26:10,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:10,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-11-07 00:26:10,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=391, Unknown=0, NotChecked=0, Total=650 [2020-11-07 00:26:10,154 INFO L87 Difference]: Start difference. First operand 154 states and 168 transitions. Second operand 26 states. [2020-11-07 00:26:11,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:11,833 INFO L93 Difference]: Finished difference Result 166 states and 180 transitions. [2020-11-07 00:26:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-11-07 00:26:11,833 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 231 [2020-11-07 00:26:11,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:11,835 INFO L225 Difference]: With dead ends: 166 [2020-11-07 00:26:11,835 INFO L226 Difference]: Without dead ends: 159 [2020-11-07 00:26:11,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=864, Invalid=1686, Unknown=0, NotChecked=0, Total=2550 [2020-11-07 00:26:11,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-11-07 00:26:11,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-11-07 00:26:11,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-11-07 00:26:11,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 173 transitions. [2020-11-07 00:26:11,860 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 173 transitions. Word has length 231 [2020-11-07 00:26:11,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:11,860 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 173 transitions. [2020-11-07 00:26:11,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-11-07 00:26:11,861 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 173 transitions. [2020-11-07 00:26:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-11-07 00:26:11,863 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:11,863 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 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 00:26:11,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-07 00:26:11,863 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:11,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:11,864 INFO L82 PathProgramCache]: Analyzing trace with hash -297068631, now seen corresponding path program 21 times [2020-11-07 00:26:11,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:11,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675596072] [2020-11-07 00:26:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:11,866 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:11,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:12,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:13,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1113 trivial. 0 not checked. [2020-11-07 00:26:13,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675596072] [2020-11-07 00:26:13,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:13,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2020-11-07 00:26:13,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972277768] [2020-11-07 00:26:13,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-11-07 00:26:13,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:13,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-11-07 00:26:13,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=420, Unknown=0, NotChecked=0, Total=702 [2020-11-07 00:26:13,542 INFO L87 Difference]: Start difference. First operand 159 states and 173 transitions. Second operand 27 states. [2020-11-07 00:26:15,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:15,218 INFO L93 Difference]: Finished difference Result 171 states and 185 transitions. [2020-11-07 00:26:15,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-11-07 00:26:15,219 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 241 [2020-11-07 00:26:15,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:15,221 INFO L225 Difference]: With dead ends: 171 [2020-11-07 00:26:15,221 INFO L226 Difference]: Without dead ends: 164 [2020-11-07 00:26:15,222 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=937, Invalid=1819, Unknown=0, NotChecked=0, Total=2756 [2020-11-07 00:26:15,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-11-07 00:26:15,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-11-07 00:26:15,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-11-07 00:26:15,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 178 transitions. [2020-11-07 00:26:15,245 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 178 transitions. Word has length 241 [2020-11-07 00:26:15,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:15,245 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 178 transitions. [2020-11-07 00:26:15,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-11-07 00:26:15,245 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 178 transitions. [2020-11-07 00:26:15,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-11-07 00:26:15,247 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:15,248 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 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 00:26:15,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-07 00:26:15,248 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:15,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:15,248 INFO L82 PathProgramCache]: Analyzing trace with hash -2054335193, now seen corresponding path program 22 times [2020-11-07 00:26:15,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:15,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616890286] [2020-11-07 00:26:15,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:15,251 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:15,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:16,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:16,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:16,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:16,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:16,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:16,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:16,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:16,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:16,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:16,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:16,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:16,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1221 trivial. 0 not checked. [2020-11-07 00:26:16,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616890286] [2020-11-07 00:26:16,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:16,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-11-07 00:26:16,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064709654] [2020-11-07 00:26:16,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-11-07 00:26:16,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:16,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-11-07 00:26:16,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=450, Unknown=0, NotChecked=0, Total=756 [2020-11-07 00:26:16,876 INFO L87 Difference]: Start difference. First operand 164 states and 178 transitions. Second operand 28 states. [2020-11-07 00:26:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:18,615 INFO L93 Difference]: Finished difference Result 176 states and 190 transitions. [2020-11-07 00:26:18,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-11-07 00:26:18,616 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 251 [2020-11-07 00:26:18,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:18,618 INFO L225 Difference]: With dead ends: 176 [2020-11-07 00:26:18,618 INFO L226 Difference]: Without dead ends: 169 [2020-11-07 00:26:18,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1013, Invalid=1957, Unknown=0, NotChecked=0, Total=2970 [2020-11-07 00:26:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-11-07 00:26:18,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2020-11-07 00:26:18,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-11-07 00:26:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 183 transitions. [2020-11-07 00:26:18,643 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 183 transitions. Word has length 251 [2020-11-07 00:26:18,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:18,644 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 183 transitions. [2020-11-07 00:26:18,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-11-07 00:26:18,644 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 183 transitions. [2020-11-07 00:26:18,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-11-07 00:26:18,646 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:18,646 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 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 00:26:18,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-07 00:26:18,646 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:18,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:18,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1834193559, now seen corresponding path program 23 times [2020-11-07 00:26:18,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:18,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189166779] [2020-11-07 00:26:18,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:18,650 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:18,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:18,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:18,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:18,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:18,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:19,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1334 trivial. 0 not checked. [2020-11-07 00:26:20,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189166779] [2020-11-07 00:26:20,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:20,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-11-07 00:26:20,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070150411] [2020-11-07 00:26:20,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-11-07 00:26:20,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:20,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-11-07 00:26:20,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=481, Unknown=0, NotChecked=0, Total=812 [2020-11-07 00:26:20,369 INFO L87 Difference]: Start difference. First operand 169 states and 183 transitions. Second operand 29 states. [2020-11-07 00:26:22,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:22,291 INFO L93 Difference]: Finished difference Result 181 states and 195 transitions. [2020-11-07 00:26:22,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-11-07 00:26:22,292 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 261 [2020-11-07 00:26:22,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:22,294 INFO L225 Difference]: With dead ends: 181 [2020-11-07 00:26:22,294 INFO L226 Difference]: Without dead ends: 174 [2020-11-07 00:26:22,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1092, Invalid=2100, Unknown=0, NotChecked=0, Total=3192 [2020-11-07 00:26:22,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-11-07 00:26:22,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-11-07 00:26:22,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-11-07 00:26:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 188 transitions. [2020-11-07 00:26:22,320 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 188 transitions. Word has length 261 [2020-11-07 00:26:22,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:22,321 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 188 transitions. [2020-11-07 00:26:22,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-11-07 00:26:22,321 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 188 transitions. [2020-11-07 00:26:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-11-07 00:26:22,323 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:22,323 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 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 00:26:22,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-07 00:26:22,323 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:22,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:22,324 INFO L82 PathProgramCache]: Analyzing trace with hash 130811239, now seen corresponding path program 24 times [2020-11-07 00:26:22,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:22,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878114262] [2020-11-07 00:26:22,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:22,327 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:22,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:22,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:22,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:22,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:22,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:22,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:22,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:22,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:22,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:22,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:23,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:24,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2020-11-07 00:26:24,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878114262] [2020-11-07 00:26:24,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:24,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2020-11-07 00:26:24,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067745327] [2020-11-07 00:26:24,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-11-07 00:26:24,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:24,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-11-07 00:26:24,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=513, Unknown=0, NotChecked=0, Total=870 [2020-11-07 00:26:24,226 INFO L87 Difference]: Start difference. First operand 174 states and 188 transitions. Second operand 30 states. [2020-11-07 00:26:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:26,254 INFO L93 Difference]: Finished difference Result 186 states and 200 transitions. [2020-11-07 00:26:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-11-07 00:26:26,255 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 271 [2020-11-07 00:26:26,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:26,259 INFO L225 Difference]: With dead ends: 186 [2020-11-07 00:26:26,259 INFO L226 Difference]: Without dead ends: 179 [2020-11-07 00:26:26,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1174, Invalid=2248, Unknown=0, NotChecked=0, Total=3422 [2020-11-07 00:26:26,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-11-07 00:26:26,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2020-11-07 00:26:26,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-11-07 00:26:26,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 193 transitions. [2020-11-07 00:26:26,284 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 193 transitions. Word has length 271 [2020-11-07 00:26:26,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:26,285 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 193 transitions. [2020-11-07 00:26:26,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-11-07 00:26:26,285 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 193 transitions. [2020-11-07 00:26:26,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-11-07 00:26:26,287 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:26,288 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 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 00:26:26,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-11-07 00:26:26,288 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:26,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:26,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1064250583, now seen corresponding path program 25 times [2020-11-07 00:26:26,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:26,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258292272] [2020-11-07 00:26:26,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:26,291 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:26,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:26,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:26,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:26,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:26,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:26,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:26,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:26,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:26,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:27,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:28,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1575 trivial. 0 not checked. [2020-11-07 00:26:28,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258292272] [2020-11-07 00:26:28,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:28,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2020-11-07 00:26:28,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9034767] [2020-11-07 00:26:28,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-11-07 00:26:28,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:28,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-11-07 00:26:28,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=546, Unknown=0, NotChecked=0, Total=930 [2020-11-07 00:26:28,393 INFO L87 Difference]: Start difference. First operand 179 states and 193 transitions. Second operand 31 states. [2020-11-07 00:26:30,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:30,470 INFO L93 Difference]: Finished difference Result 191 states and 205 transitions. [2020-11-07 00:26:30,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-11-07 00:26:30,471 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 281 [2020-11-07 00:26:30,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:30,473 INFO L225 Difference]: With dead ends: 191 [2020-11-07 00:26:30,473 INFO L226 Difference]: Without dead ends: 184 [2020-11-07 00:26:30,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1259, Invalid=2401, Unknown=0, NotChecked=0, Total=3660 [2020-11-07 00:26:30,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-07 00:26:30,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2020-11-07 00:26:30,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-07 00:26:30,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 198 transitions. [2020-11-07 00:26:30,499 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 198 transitions. Word has length 281 [2020-11-07 00:26:30,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:30,500 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 198 transitions. [2020-11-07 00:26:30,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-11-07 00:26:30,500 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 198 transitions. [2020-11-07 00:26:30,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-11-07 00:26:30,502 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:30,502 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 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 00:26:30,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-11-07 00:26:30,503 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:30,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:30,503 INFO L82 PathProgramCache]: Analyzing trace with hash -378624601, now seen corresponding path program 26 times [2020-11-07 00:26:30,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:30,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464376611] [2020-11-07 00:26:30,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:30,506 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:30,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:30,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:30,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:30,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:30,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:30,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:31,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:32,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:32,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:32,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1703 trivial. 0 not checked. [2020-11-07 00:26:32,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464376611] [2020-11-07 00:26:32,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:32,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2020-11-07 00:26:32,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647031858] [2020-11-07 00:26:32,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-11-07 00:26:32,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:32,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-11-07 00:26:32,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=412, Invalid=580, Unknown=0, NotChecked=0, Total=992 [2020-11-07 00:26:32,749 INFO L87 Difference]: Start difference. First operand 184 states and 198 transitions. Second operand 32 states. [2020-11-07 00:26:34,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:34,938 INFO L93 Difference]: Finished difference Result 196 states and 210 transitions. [2020-11-07 00:26:34,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-11-07 00:26:34,943 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 291 [2020-11-07 00:26:34,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:34,945 INFO L225 Difference]: With dead ends: 196 [2020-11-07 00:26:34,945 INFO L226 Difference]: Without dead ends: 189 [2020-11-07 00:26:34,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1347, Invalid=2559, Unknown=0, NotChecked=0, Total=3906 [2020-11-07 00:26:34,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-11-07 00:26:34,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2020-11-07 00:26:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-11-07 00:26:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 203 transitions. [2020-11-07 00:26:34,971 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 203 transitions. Word has length 291 [2020-11-07 00:26:34,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:34,972 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 203 transitions. [2020-11-07 00:26:34,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-11-07 00:26:34,972 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 203 transitions. [2020-11-07 00:26:34,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-11-07 00:26:34,974 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:34,974 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 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 00:26:34,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-11-07 00:26:34,974 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:34,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:34,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1766082793, now seen corresponding path program 27 times [2020-11-07 00:26:34,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:34,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195312410] [2020-11-07 00:26:34,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:34,978 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:35,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:36,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:36,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:36,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:36,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:36,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:36,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:36,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:36,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:36,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:36,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:36,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:37,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2020-11-07 00:26:37,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195312410] [2020-11-07 00:26:37,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:37,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2020-11-07 00:26:37,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397326513] [2020-11-07 00:26:37,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-11-07 00:26:37,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:37,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-11-07 00:26:37,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=615, Unknown=0, NotChecked=0, Total=1056 [2020-11-07 00:26:37,173 INFO L87 Difference]: Start difference. First operand 189 states and 203 transitions. Second operand 33 states. [2020-11-07 00:26:39,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:39,444 INFO L93 Difference]: Finished difference Result 201 states and 215 transitions. [2020-11-07 00:26:39,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-11-07 00:26:39,444 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 301 [2020-11-07 00:26:39,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:39,447 INFO L225 Difference]: With dead ends: 201 [2020-11-07 00:26:39,447 INFO L226 Difference]: Without dead ends: 194 [2020-11-07 00:26:39,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1438, Invalid=2722, Unknown=0, NotChecked=0, Total=4160 [2020-11-07 00:26:39,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-11-07 00:26:39,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-11-07 00:26:39,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-11-07 00:26:39,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 208 transitions. [2020-11-07 00:26:39,473 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 208 transitions. Word has length 301 [2020-11-07 00:26:39,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:39,474 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 208 transitions. [2020-11-07 00:26:39,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-11-07 00:26:39,474 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 208 transitions. [2020-11-07 00:26:39,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-11-07 00:26:39,476 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:39,476 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 28, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 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 00:26:39,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-07 00:26:39,476 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:39,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:39,477 INFO L82 PathProgramCache]: Analyzing trace with hash -2010565145, now seen corresponding path program 28 times [2020-11-07 00:26:39,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:39,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [209380332] [2020-11-07 00:26:39,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:39,480 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:39,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:39,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:39,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:39,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:39,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:39,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:39,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:40,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:41,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:41,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:41,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:41,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:41,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:41,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1974 trivial. 0 not checked. [2020-11-07 00:26:41,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [209380332] [2020-11-07 00:26:41,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:41,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2020-11-07 00:26:41,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359629818] [2020-11-07 00:26:41,951 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-11-07 00:26:41,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:41,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-11-07 00:26:41,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=471, Invalid=651, Unknown=0, NotChecked=0, Total=1122 [2020-11-07 00:26:41,952 INFO L87 Difference]: Start difference. First operand 194 states and 208 transitions. Second operand 34 states. [2020-11-07 00:26:44,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:44,210 INFO L93 Difference]: Finished difference Result 206 states and 220 transitions. [2020-11-07 00:26:44,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-11-07 00:26:44,211 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 311 [2020-11-07 00:26:44,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:44,213 INFO L225 Difference]: With dead ends: 206 [2020-11-07 00:26:44,213 INFO L226 Difference]: Without dead ends: 199 [2020-11-07 00:26:44,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 932 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1532, Invalid=2890, Unknown=0, NotChecked=0, Total=4422 [2020-11-07 00:26:44,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-11-07 00:26:44,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2020-11-07 00:26:44,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-11-07 00:26:44,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 213 transitions. [2020-11-07 00:26:44,241 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 213 transitions. Word has length 311 [2020-11-07 00:26:44,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:44,241 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 213 transitions. [2020-11-07 00:26:44,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-11-07 00:26:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 213 transitions. [2020-11-07 00:26:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-11-07 00:26:44,243 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:44,244 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 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 00:26:44,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-11-07 00:26:44,244 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:44,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:44,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1626157399, now seen corresponding path program 29 times [2020-11-07 00:26:44,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:44,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848442138] [2020-11-07 00:26:44,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:44,248 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:44,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:44,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:44,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:44,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:44,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:44,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:44,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:44,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:44,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:44,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:45,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:46,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:46,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2117 trivial. 0 not checked. [2020-11-07 00:26:46,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848442138] [2020-11-07 00:26:46,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:46,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2020-11-07 00:26:46,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18429805] [2020-11-07 00:26:46,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-11-07 00:26:46,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:46,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-11-07 00:26:46,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=688, Unknown=0, NotChecked=0, Total=1190 [2020-11-07 00:26:46,884 INFO L87 Difference]: Start difference. First operand 199 states and 213 transitions. Second operand 35 states. [2020-11-07 00:26:49,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:49,333 INFO L93 Difference]: Finished difference Result 211 states and 225 transitions. [2020-11-07 00:26:49,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-11-07 00:26:49,334 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 321 [2020-11-07 00:26:49,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:49,336 INFO L225 Difference]: With dead ends: 211 [2020-11-07 00:26:49,336 INFO L226 Difference]: Without dead ends: 204 [2020-11-07 00:26:49,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 994 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1629, Invalid=3063, Unknown=0, NotChecked=0, Total=4692 [2020-11-07 00:26:49,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-11-07 00:26:49,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2020-11-07 00:26:49,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-11-07 00:26:49,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 218 transitions. [2020-11-07 00:26:49,362 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 218 transitions. Word has length 321 [2020-11-07 00:26:49,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:49,363 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 218 transitions. [2020-11-07 00:26:49,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-11-07 00:26:49,363 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 218 transitions. [2020-11-07 00:26:49,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-11-07 00:26:49,365 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:49,365 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 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 00:26:49,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-11-07 00:26:49,366 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:49,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:49,366 INFO L82 PathProgramCache]: Analyzing trace with hash 11515431, now seen corresponding path program 30 times [2020-11-07 00:26:49,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:49,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1456725059] [2020-11-07 00:26:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:49,369 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:49,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:49,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:49,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:49,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:49,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:49,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:49,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:49,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:50,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:51,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:51,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:51,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:51,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:51,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:52,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2265 trivial. 0 not checked. [2020-11-07 00:26:52,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1456725059] [2020-11-07 00:26:52,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:52,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2020-11-07 00:26:52,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190302138] [2020-11-07 00:26:52,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-11-07 00:26:52,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:52,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-11-07 00:26:52,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=726, Unknown=0, NotChecked=0, Total=1260 [2020-11-07 00:26:52,083 INFO L87 Difference]: Start difference. First operand 204 states and 218 transitions. Second operand 36 states. [2020-11-07 00:26:54,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:26:54,602 INFO L93 Difference]: Finished difference Result 216 states and 230 transitions. [2020-11-07 00:26:54,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-07 00:26:54,603 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 331 [2020-11-07 00:26:54,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:26:54,605 INFO L225 Difference]: With dead ends: 216 [2020-11-07 00:26:54,606 INFO L226 Difference]: Without dead ends: 209 [2020-11-07 00:26:54,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1058 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1729, Invalid=3241, Unknown=0, NotChecked=0, Total=4970 [2020-11-07 00:26:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-11-07 00:26:54,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-11-07 00:26:54,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-11-07 00:26:54,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 223 transitions. [2020-11-07 00:26:54,633 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 223 transitions. Word has length 331 [2020-11-07 00:26:54,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:26:54,633 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 223 transitions. [2020-11-07 00:26:54,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-11-07 00:26:54,634 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 223 transitions. [2020-11-07 00:26:54,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-11-07 00:26:54,636 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:26:54,636 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 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 00:26:54,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-11-07 00:26:54,636 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:26:54,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:26:54,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1430807657, now seen corresponding path program 31 times [2020-11-07 00:26:54,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:26:54,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051930479] [2020-11-07 00:26:54,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:26:54,640 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:26:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:54,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:26:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:54,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:26:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:54,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:54,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:54,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:55,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:56,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:56,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:56,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:56,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:56,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:56,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:56,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:56,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:56,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:56,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:56,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:26:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:26:57,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2418 trivial. 0 not checked. [2020-11-07 00:26:57,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051930479] [2020-11-07 00:26:57,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:26:57,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2020-11-07 00:26:57,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560191919] [2020-11-07 00:26:57,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-11-07 00:26:57,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:26:57,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-11-07 00:26:57,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=567, Invalid=765, Unknown=0, NotChecked=0, Total=1332 [2020-11-07 00:26:57,517 INFO L87 Difference]: Start difference. First operand 209 states and 223 transitions. Second operand 37 states. [2020-11-07 00:27:00,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:27:00,095 INFO L93 Difference]: Finished difference Result 221 states and 235 transitions. [2020-11-07 00:27:00,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-11-07 00:27:00,096 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 341 [2020-11-07 00:27:00,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:27:00,098 INFO L225 Difference]: With dead ends: 221 [2020-11-07 00:27:00,099 INFO L226 Difference]: Without dead ends: 214 [2020-11-07 00:27:00,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1124 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1832, Invalid=3424, Unknown=0, NotChecked=0, Total=5256 [2020-11-07 00:27:00,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-11-07 00:27:00,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-11-07 00:27:00,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-11-07 00:27:00,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 228 transitions. [2020-11-07 00:27:00,129 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 228 transitions. Word has length 341 [2020-11-07 00:27:00,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:27:00,130 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 228 transitions. [2020-11-07 00:27:00,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-11-07 00:27:00,130 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 228 transitions. [2020-11-07 00:27:00,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-11-07 00:27:00,132 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:27:00,133 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 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 00:27:00,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-11-07 00:27:00,133 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:27:00,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:27:00,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1857431143, now seen corresponding path program 32 times [2020-11-07 00:27:00,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:27:00,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463092928] [2020-11-07 00:27:00,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:27:00,137 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:27:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:00,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:27:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:00,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:27:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:00,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:00,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:00,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:00,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:00,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:00,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:00,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:00,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:01,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:02,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:02,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:02,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:02,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:02,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:02,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:02,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:02,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2576 trivial. 0 not checked. [2020-11-07 00:27:03,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463092928] [2020-11-07 00:27:03,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:27:03,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2020-11-07 00:27:03,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508456536] [2020-11-07 00:27:03,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-11-07 00:27:03,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:27:03,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-11-07 00:27:03,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=601, Invalid=805, Unknown=0, NotChecked=0, Total=1406 [2020-11-07 00:27:03,397 INFO L87 Difference]: Start difference. First operand 214 states and 228 transitions. Second operand 38 states. [2020-11-07 00:27:06,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:27:06,152 INFO L93 Difference]: Finished difference Result 226 states and 240 transitions. [2020-11-07 00:27:06,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-11-07 00:27:06,152 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 351 [2020-11-07 00:27:06,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:27:06,155 INFO L225 Difference]: With dead ends: 226 [2020-11-07 00:27:06,155 INFO L226 Difference]: Without dead ends: 219 [2020-11-07 00:27:06,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1938, Invalid=3612, Unknown=0, NotChecked=0, Total=5550 [2020-11-07 00:27:06,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-11-07 00:27:06,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2020-11-07 00:27:06,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-11-07 00:27:06,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 233 transitions. [2020-11-07 00:27:06,182 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 233 transitions. Word has length 351 [2020-11-07 00:27:06,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:27:06,183 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 233 transitions. [2020-11-07 00:27:06,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-11-07 00:27:06,183 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 233 transitions. [2020-11-07 00:27:06,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-11-07 00:27:06,185 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:27:06,186 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 34, 33, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 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 00:27:06,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-11-07 00:27:06,186 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:27:06,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:27:06,187 INFO L82 PathProgramCache]: Analyzing trace with hash 540084777, now seen corresponding path program 33 times [2020-11-07 00:27:06,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:27:06,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987766577] [2020-11-07 00:27:06,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:27:06,190 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:27:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:06,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:27:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:06,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:27:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:06,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:06,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:06,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:06,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:06,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:06,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:06,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:07,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:07,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:07,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:07,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:07,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:07,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:07,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:07,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:07,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:07,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:07,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:07,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:08,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2739 trivial. 0 not checked. [2020-11-07 00:27:09,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987766577] [2020-11-07 00:27:09,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:27:09,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2020-11-07 00:27:09,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33533868] [2020-11-07 00:27:09,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-11-07 00:27:09,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:27:09,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-11-07 00:27:09,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=636, Invalid=846, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 00:27:09,934 INFO L87 Difference]: Start difference. First operand 219 states and 233 transitions. Second operand 39 states. [2020-11-07 00:27:12,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:27:12,765 INFO L93 Difference]: Finished difference Result 231 states and 245 transitions. [2020-11-07 00:27:12,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-11-07 00:27:12,766 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 361 [2020-11-07 00:27:12,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:27:12,769 INFO L225 Difference]: With dead ends: 231 [2020-11-07 00:27:12,769 INFO L226 Difference]: Without dead ends: 224 [2020-11-07 00:27:12,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2047, Invalid=3805, Unknown=0, NotChecked=0, Total=5852 [2020-11-07 00:27:12,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-11-07 00:27:12,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-11-07 00:27:12,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-11-07 00:27:12,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 238 transitions. [2020-11-07 00:27:12,798 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 238 transitions. Word has length 361 [2020-11-07 00:27:12,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:27:12,798 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 238 transitions. [2020-11-07 00:27:12,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-11-07 00:27:12,798 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 238 transitions. [2020-11-07 00:27:12,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-11-07 00:27:12,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:27:12,801 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 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 00:27:12,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-11-07 00:27:12,801 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:27:12,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:27:12,802 INFO L82 PathProgramCache]: Analyzing trace with hash 753960615, now seen corresponding path program 34 times [2020-11-07 00:27:12,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:27:12,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063442126] [2020-11-07 00:27:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:27:12,805 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:27:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:12,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:27:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:12,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:27:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:13,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:13,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:13,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:13,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:13,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:13,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:13,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:13,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:14,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:14,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:14,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:14,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:14,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:14,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:14,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:14,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:14,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:14,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:14,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:14,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:15,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:17,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2907 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2907 trivial. 0 not checked. [2020-11-07 00:27:17,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063442126] [2020-11-07 00:27:17,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:27:17,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2020-11-07 00:27:17,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223025328] [2020-11-07 00:27:17,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-11-07 00:27:17,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:27:17,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-11-07 00:27:17,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=888, Unknown=0, NotChecked=0, Total=1560 [2020-11-07 00:27:17,020 INFO L87 Difference]: Start difference. First operand 224 states and 238 transitions. Second operand 40 states. [2020-11-07 00:27:19,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:27:19,911 INFO L93 Difference]: Finished difference Result 236 states and 250 transitions. [2020-11-07 00:27:19,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-11-07 00:27:19,911 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 371 [2020-11-07 00:27:19,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:27:19,914 INFO L225 Difference]: With dead ends: 236 [2020-11-07 00:27:19,914 INFO L226 Difference]: Without dead ends: 229 [2020-11-07 00:27:19,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2159, Invalid=4003, Unknown=0, NotChecked=0, Total=6162 [2020-11-07 00:27:19,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-11-07 00:27:19,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-11-07 00:27:19,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-11-07 00:27:19,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 243 transitions. [2020-11-07 00:27:19,944 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 243 transitions. Word has length 371 [2020-11-07 00:27:19,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:27:19,945 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 243 transitions. [2020-11-07 00:27:19,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-11-07 00:27:19,945 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 243 transitions. [2020-11-07 00:27:19,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2020-11-07 00:27:19,948 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:27:19,948 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 36, 35, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 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 00:27:19,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-11-07 00:27:19,948 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:27:19,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:27:19,949 INFO L82 PathProgramCache]: Analyzing trace with hash -182927383, now seen corresponding path program 35 times [2020-11-07 00:27:19,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:27:19,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [404300921] [2020-11-07 00:27:19,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:27:19,953 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:27:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:20,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:27:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:20,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:27:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:20,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:20,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:20,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:20,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:20,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:20,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:20,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:20,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:20,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:21,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:22,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:22,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:22,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:22,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:22,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:22,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:22,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:22,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:22,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:22,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:22,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:24,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3080 trivial. 0 not checked. [2020-11-07 00:27:24,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [404300921] [2020-11-07 00:27:24,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:27:24,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2020-11-07 00:27:24,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197778870] [2020-11-07 00:27:24,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-11-07 00:27:24,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:27:24,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-11-07 00:27:24,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=709, Invalid=931, Unknown=0, NotChecked=0, Total=1640 [2020-11-07 00:27:24,112 INFO L87 Difference]: Start difference. First operand 229 states and 243 transitions. Second operand 41 states. [2020-11-07 00:27:27,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:27:27,009 INFO L93 Difference]: Finished difference Result 241 states and 255 transitions. [2020-11-07 00:27:27,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-11-07 00:27:27,009 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 381 [2020-11-07 00:27:27,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:27:27,011 INFO L225 Difference]: With dead ends: 241 [2020-11-07 00:27:27,011 INFO L226 Difference]: Without dead ends: 234 [2020-11-07 00:27:27,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1408 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2274, Invalid=4206, Unknown=0, NotChecked=0, Total=6480 [2020-11-07 00:27:27,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-11-07 00:27:27,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-11-07 00:27:27,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-11-07 00:27:27,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 248 transitions. [2020-11-07 00:27:27,040 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 248 transitions. Word has length 381 [2020-11-07 00:27:27,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:27:27,041 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 248 transitions. [2020-11-07 00:27:27,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-11-07 00:27:27,041 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 248 transitions. [2020-11-07 00:27:27,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-11-07 00:27:27,044 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:27:27,044 INFO L422 BasicCegarLoop]: trace histogram [37, 37, 37, 36, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 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 00:27:27,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-11-07 00:27:27,044 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:27:27,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:27:27,045 INFO L82 PathProgramCache]: Analyzing trace with hash 353556199, now seen corresponding path program 36 times [2020-11-07 00:27:27,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:27:27,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1427324767] [2020-11-07 00:27:27,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:27:27,048 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:27:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:27,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:27:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:27,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:27:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:27,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:27,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:27,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:27,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:27,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:27,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:27,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:28,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:29,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:31,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3258 trivial. 0 not checked. [2020-11-07 00:27:31,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1427324767] [2020-11-07 00:27:31,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:27:31,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2020-11-07 00:27:31,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726605809] [2020-11-07 00:27:31,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-11-07 00:27:31,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:27:31,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-11-07 00:27:31,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=747, Invalid=975, Unknown=0, NotChecked=0, Total=1722 [2020-11-07 00:27:31,472 INFO L87 Difference]: Start difference. First operand 234 states and 248 transitions. Second operand 42 states. [2020-11-07 00:27:34,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:27:34,558 INFO L93 Difference]: Finished difference Result 246 states and 260 transitions. [2020-11-07 00:27:34,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-11-07 00:27:34,559 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 391 [2020-11-07 00:27:34,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:27:34,562 INFO L225 Difference]: With dead ends: 246 [2020-11-07 00:27:34,562 INFO L226 Difference]: Without dead ends: 239 [2020-11-07 00:27:34,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1484 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2392, Invalid=4414, Unknown=0, NotChecked=0, Total=6806 [2020-11-07 00:27:34,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-11-07 00:27:34,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-11-07 00:27:34,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-11-07 00:27:34,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 253 transitions. [2020-11-07 00:27:34,594 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 253 transitions. Word has length 391 [2020-11-07 00:27:34,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:27:34,595 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 253 transitions. [2020-11-07 00:27:34,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-11-07 00:27:34,595 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 253 transitions. [2020-11-07 00:27:34,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-11-07 00:27:34,598 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:27:34,598 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 38, 37, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 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 00:27:34,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-11-07 00:27:34,598 INFO L429 AbstractCegarLoop]: === Iteration 39 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:27:34,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:27:34,599 INFO L82 PathProgramCache]: Analyzing trace with hash -364149335, now seen corresponding path program 37 times [2020-11-07 00:27:34,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:27:34,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [436426231] [2020-11-07 00:27:34,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:27:34,603 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:27:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:34,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:27:34,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:34,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:27:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:34,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:34,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:35,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:35,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:35,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:35,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:35,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:35,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:35,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:35,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:35,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:36,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:37,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:37,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:37,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:37,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:37,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:37,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:37,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:37,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:37,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:37,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:37,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:39,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3441 trivial. 0 not checked. [2020-11-07 00:27:39,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [436426231] [2020-11-07 00:27:39,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:27:39,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2020-11-07 00:27:39,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660945051] [2020-11-07 00:27:39,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-11-07 00:27:39,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:27:39,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-11-07 00:27:39,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=786, Invalid=1020, Unknown=0, NotChecked=0, Total=1806 [2020-11-07 00:27:39,338 INFO L87 Difference]: Start difference. First operand 239 states and 253 transitions. Second operand 43 states. [2020-11-07 00:27:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:27:42,428 INFO L93 Difference]: Finished difference Result 251 states and 265 transitions. [2020-11-07 00:27:42,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-11-07 00:27:42,428 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 401 [2020-11-07 00:27:42,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:27:42,431 INFO L225 Difference]: With dead ends: 251 [2020-11-07 00:27:42,431 INFO L226 Difference]: Without dead ends: 244 [2020-11-07 00:27:42,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1562 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2513, Invalid=4627, Unknown=0, NotChecked=0, Total=7140 [2020-11-07 00:27:42,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-11-07 00:27:42,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2020-11-07 00:27:42,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-11-07 00:27:42,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 258 transitions. [2020-11-07 00:27:42,461 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 258 transitions. Word has length 401 [2020-11-07 00:27:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:27:42,462 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 258 transitions. [2020-11-07 00:27:42,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-11-07 00:27:42,462 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 258 transitions. [2020-11-07 00:27:42,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2020-11-07 00:27:42,465 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:27:42,465 INFO L422 BasicCegarLoop]: trace histogram [39, 39, 39, 38, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 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 00:27:42,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-11-07 00:27:42,465 INFO L429 AbstractCegarLoop]: === Iteration 40 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:27:42,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:27:42,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1076816089, now seen corresponding path program 38 times [2020-11-07 00:27:42,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:27:42,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1120177975] [2020-11-07 00:27:42,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:27:42,470 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:27:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:42,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:27:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:42,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:27:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:42,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:42,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:42,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:42,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:43,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:43,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:43,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:43,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:43,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:43,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:43,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:43,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:43,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:43,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:43,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:43,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:44,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:45,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:45,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:45,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:45,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:45,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:45,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:46,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3629 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3629 trivial. 0 not checked. [2020-11-07 00:27:46,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1120177975] [2020-11-07 00:27:46,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:27:46,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2020-11-07 00:27:46,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691384879] [2020-11-07 00:27:46,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-11-07 00:27:46,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:27:46,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-11-07 00:27:46,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=826, Invalid=1066, Unknown=0, NotChecked=0, Total=1892 [2020-11-07 00:27:46,958 INFO L87 Difference]: Start difference. First operand 244 states and 258 transitions. Second operand 44 states. [2020-11-07 00:27:50,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:27:50,040 INFO L93 Difference]: Finished difference Result 256 states and 270 transitions. [2020-11-07 00:27:50,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-11-07 00:27:50,041 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 411 [2020-11-07 00:27:50,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:27:50,043 INFO L225 Difference]: With dead ends: 256 [2020-11-07 00:27:50,043 INFO L226 Difference]: Without dead ends: 249 [2020-11-07 00:27:50,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1642 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2637, Invalid=4845, Unknown=0, NotChecked=0, Total=7482 [2020-11-07 00:27:50,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-11-07 00:27:50,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2020-11-07 00:27:50,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-11-07 00:27:50,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 263 transitions. [2020-11-07 00:27:50,075 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 263 transitions. Word has length 411 [2020-11-07 00:27:50,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:27:50,076 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 263 transitions. [2020-11-07 00:27:50,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-11-07 00:27:50,076 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 263 transitions. [2020-11-07 00:27:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2020-11-07 00:27:50,079 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:27:50,079 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 40, 39, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 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 00:27:50,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-11-07 00:27:50,080 INFO L429 AbstractCegarLoop]: === Iteration 41 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:27:50,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:27:50,080 INFO L82 PathProgramCache]: Analyzing trace with hash -149595287, now seen corresponding path program 39 times [2020-11-07 00:27:50,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:27:50,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [515150905] [2020-11-07 00:27:50,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:27:50,085 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:27:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:50,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:27:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:50,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:27:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:50,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:50,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:50,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:50,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:50,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:50,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:50,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:51,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:52,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:53,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:53,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:53,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:54,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3822 trivial. 0 not checked. [2020-11-07 00:27:54,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [515150905] [2020-11-07 00:27:54,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:27:54,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2020-11-07 00:27:54,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948684363] [2020-11-07 00:27:54,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-11-07 00:27:54,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:27:54,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-11-07 00:27:54,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=867, Invalid=1113, Unknown=0, NotChecked=0, Total=1980 [2020-11-07 00:27:54,926 INFO L87 Difference]: Start difference. First operand 249 states and 263 transitions. Second operand 45 states. [2020-11-07 00:27:58,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:27:58,164 INFO L93 Difference]: Finished difference Result 261 states and 275 transitions. [2020-11-07 00:27:58,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-11-07 00:27:58,165 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 421 [2020-11-07 00:27:58,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:27:58,168 INFO L225 Difference]: With dead ends: 261 [2020-11-07 00:27:58,168 INFO L226 Difference]: Without dead ends: 254 [2020-11-07 00:27:58,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1724 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2764, Invalid=5068, Unknown=0, NotChecked=0, Total=7832 [2020-11-07 00:27:58,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-11-07 00:27:58,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-11-07 00:27:58,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-11-07 00:27:58,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 268 transitions. [2020-11-07 00:27:58,195 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 268 transitions. Word has length 421 [2020-11-07 00:27:58,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:27:58,195 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 268 transitions. [2020-11-07 00:27:58,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-11-07 00:27:58,196 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 268 transitions. [2020-11-07 00:27:58,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2020-11-07 00:27:58,199 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:27:58,199 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 41, 40, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 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 00:27:58,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-11-07 00:27:58,199 INFO L429 AbstractCegarLoop]: === Iteration 42 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:27:58,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:27:58,200 INFO L82 PathProgramCache]: Analyzing trace with hash -992000153, now seen corresponding path program 40 times [2020-11-07 00:27:58,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:27:58,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645471797] [2020-11-07 00:27:58,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:27:58,204 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:27:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:58,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:27:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:58,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:27:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:58,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:58,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:58,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:58,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:59,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:59,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:59,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:59,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:59,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:59,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:59,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:59,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:59,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:59,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:27:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:27:59,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:00,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:01,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:01,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:01,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:01,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:01,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:01,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:01,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:01,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:01,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:01,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:01,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4020 trivial. 0 not checked. [2020-11-07 00:28:03,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645471797] [2020-11-07 00:28:03,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:28:03,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2020-11-07 00:28:03,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553115637] [2020-11-07 00:28:03,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-11-07 00:28:03,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:28:03,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-11-07 00:28:03,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=909, Invalid=1161, Unknown=0, NotChecked=0, Total=2070 [2020-11-07 00:28:03,640 INFO L87 Difference]: Start difference. First operand 254 states and 268 transitions. Second operand 46 states. [2020-11-07 00:28:06,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:28:06,996 INFO L93 Difference]: Finished difference Result 266 states and 280 transitions. [2020-11-07 00:28:06,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-11-07 00:28:06,997 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 431 [2020-11-07 00:28:06,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:28:06,999 INFO L225 Difference]: With dead ends: 266 [2020-11-07 00:28:06,999 INFO L226 Difference]: Without dead ends: 259 [2020-11-07 00:28:07,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1808 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2894, Invalid=5296, Unknown=0, NotChecked=0, Total=8190 [2020-11-07 00:28:07,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-11-07 00:28:07,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2020-11-07 00:28:07,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-11-07 00:28:07,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 273 transitions. [2020-11-07 00:28:07,034 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 273 transitions. Word has length 431 [2020-11-07 00:28:07,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:28:07,034 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 273 transitions. [2020-11-07 00:28:07,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-11-07 00:28:07,034 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 273 transitions. [2020-11-07 00:28:07,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2020-11-07 00:28:07,038 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:28:07,038 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 42, 41, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 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 00:28:07,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-11-07 00:28:07,038 INFO L429 AbstractCegarLoop]: === Iteration 43 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:28:07,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:28:07,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1279114967, now seen corresponding path program 41 times [2020-11-07 00:28:07,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:28:07,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669631701] [2020-11-07 00:28:07,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:28:07,043 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:28:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:07,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:28:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:07,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:28:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:07,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:07,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:07,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:07,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:07,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:07,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:08,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:08,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:08,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:08,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:08,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:08,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:08,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:08,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:08,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:08,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:08,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:09,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:10,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:10,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:10,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:10,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:10,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:10,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:10,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:10,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:10,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:10,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:10,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:10,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:12,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4223 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4223 trivial. 0 not checked. [2020-11-07 00:28:12,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669631701] [2020-11-07 00:28:12,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:28:12,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2020-11-07 00:28:12,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806067963] [2020-11-07 00:28:12,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-11-07 00:28:12,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:28:12,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-11-07 00:28:12,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=952, Invalid=1210, Unknown=0, NotChecked=0, Total=2162 [2020-11-07 00:28:12,822 INFO L87 Difference]: Start difference. First operand 259 states and 273 transitions. Second operand 47 states. [2020-11-07 00:28:16,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:28:16,262 INFO L93 Difference]: Finished difference Result 271 states and 285 transitions. [2020-11-07 00:28:16,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-11-07 00:28:16,263 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 441 [2020-11-07 00:28:16,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:28:16,266 INFO L225 Difference]: With dead ends: 271 [2020-11-07 00:28:16,266 INFO L226 Difference]: Without dead ends: 264 [2020-11-07 00:28:16,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=3027, Invalid=5529, Unknown=0, NotChecked=0, Total=8556 [2020-11-07 00:28:16,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-11-07 00:28:16,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2020-11-07 00:28:16,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-11-07 00:28:16,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 278 transitions. [2020-11-07 00:28:16,300 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 278 transitions. Word has length 441 [2020-11-07 00:28:16,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:28:16,301 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 278 transitions. [2020-11-07 00:28:16,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-11-07 00:28:16,301 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 278 transitions. [2020-11-07 00:28:16,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2020-11-07 00:28:16,304 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:28:16,305 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 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 00:28:16,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-11-07 00:28:16,305 INFO L429 AbstractCegarLoop]: === Iteration 44 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:28:16,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:28:16,306 INFO L82 PathProgramCache]: Analyzing trace with hash -84842585, now seen corresponding path program 42 times [2020-11-07 00:28:16,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:28:16,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271524507] [2020-11-07 00:28:16,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:28:16,310 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:28:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:16,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:28:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:16,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:28:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:16,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:16,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:16,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:16,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:17,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:17,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:17,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:17,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:17,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:17,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:17,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:17,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:17,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:17,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:17,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:18,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:18,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:18,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:18,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:18,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:18,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:18,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:18,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:18,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:18,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:18,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:18,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:19,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4431 trivial. 0 not checked. [2020-11-07 00:28:22,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1271524507] [2020-11-07 00:28:22,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:28:22,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2020-11-07 00:28:22,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925158141] [2020-11-07 00:28:22,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-11-07 00:28:22,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:28:22,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-11-07 00:28:22,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=996, Invalid=1260, Unknown=0, NotChecked=0, Total=2256 [2020-11-07 00:28:22,132 INFO L87 Difference]: Start difference. First operand 264 states and 278 transitions. Second operand 48 states. [2020-11-07 00:28:25,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:28:25,918 INFO L93 Difference]: Finished difference Result 276 states and 290 transitions. [2020-11-07 00:28:25,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-11-07 00:28:25,920 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 451 [2020-11-07 00:28:25,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:28:25,926 INFO L225 Difference]: With dead ends: 276 [2020-11-07 00:28:25,926 INFO L226 Difference]: Without dead ends: 269 [2020-11-07 00:28:25,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1982 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=3163, Invalid=5767, Unknown=0, NotChecked=0, Total=8930 [2020-11-07 00:28:25,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-11-07 00:28:25,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2020-11-07 00:28:25,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-11-07 00:28:25,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 283 transitions. [2020-11-07 00:28:25,967 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 283 transitions. Word has length 451 [2020-11-07 00:28:25,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:28:25,968 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 283 transitions. [2020-11-07 00:28:25,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-11-07 00:28:25,968 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 283 transitions. [2020-11-07 00:28:25,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2020-11-07 00:28:25,971 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:28:25,972 INFO L422 BasicCegarLoop]: trace histogram [44, 44, 44, 43, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 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 00:28:25,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-11-07 00:28:25,972 INFO L429 AbstractCegarLoop]: === Iteration 45 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:28:25,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:28:25,972 INFO L82 PathProgramCache]: Analyzing trace with hash 429799145, now seen corresponding path program 43 times [2020-11-07 00:28:25,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:28:25,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031253546] [2020-11-07 00:28:25,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:28:25,976 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:28:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:26,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:28:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:26,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:28:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:26,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:26,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:26,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:26,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:26,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:26,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:26,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:27,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:27,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:27,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:27,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:27,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:27,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:27,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:27,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:27,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:27,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:27,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:28,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:28,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:29,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:29,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:29,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:29,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:29,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:29,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:29,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:29,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:29,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:29,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:29,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:29,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:32,150 INFO L134 CoverageAnalysis]: Checked inductivity of 4644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4644 trivial. 0 not checked. [2020-11-07 00:28:32,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031253546] [2020-11-07 00:28:32,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:28:32,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2020-11-07 00:28:32,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100513098] [2020-11-07 00:28:32,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-11-07 00:28:32,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:28:32,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-11-07 00:28:32,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1041, Invalid=1311, Unknown=0, NotChecked=0, Total=2352 [2020-11-07 00:28:32,152 INFO L87 Difference]: Start difference. First operand 269 states and 283 transitions. Second operand 49 states. [2020-11-07 00:28:36,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:28:36,033 INFO L93 Difference]: Finished difference Result 281 states and 295 transitions. [2020-11-07 00:28:36,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-11-07 00:28:36,033 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 461 [2020-11-07 00:28:36,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:28:36,036 INFO L225 Difference]: With dead ends: 281 [2020-11-07 00:28:36,036 INFO L226 Difference]: Without dead ends: 274 [2020-11-07 00:28:36,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2072 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=3302, Invalid=6010, Unknown=0, NotChecked=0, Total=9312 [2020-11-07 00:28:36,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-11-07 00:28:36,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-11-07 00:28:36,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-11-07 00:28:36,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 288 transitions. [2020-11-07 00:28:36,071 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 288 transitions. Word has length 461 [2020-11-07 00:28:36,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:28:36,072 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 288 transitions. [2020-11-07 00:28:36,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-11-07 00:28:36,072 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 288 transitions. [2020-11-07 00:28:36,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2020-11-07 00:28:36,075 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:28:36,076 INFO L422 BasicCegarLoop]: trace histogram [45, 45, 45, 44, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 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 00:28:36,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-11-07 00:28:36,076 INFO L429 AbstractCegarLoop]: === Iteration 46 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:28:36,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:28:36,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1212450841, now seen corresponding path program 44 times [2020-11-07 00:28:36,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:28:36,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127326296] [2020-11-07 00:28:36,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:28:36,080 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:28:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:36,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:28:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:36,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:28:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:36,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:36,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:36,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:36,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:36,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:36,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:37,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:37,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:37,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:37,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:37,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:37,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:37,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:37,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:37,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:37,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:38,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:38,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:38,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:38,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:38,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:38,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:38,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:38,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:38,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:38,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:38,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:38,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:39,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:40,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:42,515 INFO L134 CoverageAnalysis]: Checked inductivity of 4862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4862 trivial. 0 not checked. [2020-11-07 00:28:42,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127326296] [2020-11-07 00:28:42,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:28:42,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2020-11-07 00:28:42,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848666988] [2020-11-07 00:28:42,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-11-07 00:28:42,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:28:42,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-11-07 00:28:42,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1087, Invalid=1363, Unknown=0, NotChecked=0, Total=2450 [2020-11-07 00:28:42,517 INFO L87 Difference]: Start difference. First operand 274 states and 288 transitions. Second operand 50 states. [2020-11-07 00:28:46,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:28:46,490 INFO L93 Difference]: Finished difference Result 286 states and 300 transitions. [2020-11-07 00:28:46,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-11-07 00:28:46,491 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 471 [2020-11-07 00:28:46,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:28:46,494 INFO L225 Difference]: With dead ends: 286 [2020-11-07 00:28:46,494 INFO L226 Difference]: Without dead ends: 279 [2020-11-07 00:28:46,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2164 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=3444, Invalid=6258, Unknown=0, NotChecked=0, Total=9702 [2020-11-07 00:28:46,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-11-07 00:28:46,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2020-11-07 00:28:46,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-11-07 00:28:46,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 293 transitions. [2020-11-07 00:28:46,530 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 293 transitions. Word has length 471 [2020-11-07 00:28:46,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:28:46,530 INFO L481 AbstractCegarLoop]: Abstraction has 279 states and 293 transitions. [2020-11-07 00:28:46,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-11-07 00:28:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 293 transitions. [2020-11-07 00:28:46,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2020-11-07 00:28:46,534 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:28:46,534 INFO L422 BasicCegarLoop]: trace histogram [46, 46, 46, 45, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 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 00:28:46,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-11-07 00:28:46,534 INFO L429 AbstractCegarLoop]: === Iteration 47 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:28:46,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:28:46,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1123368105, now seen corresponding path program 45 times [2020-11-07 00:28:46,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:28:46,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494975519] [2020-11-07 00:28:46,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:28:46,539 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:28:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:46,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:28:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:46,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:28:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:46,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:46,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:47,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:47,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:47,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:47,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:47,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:47,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:47,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:47,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:48,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:48,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:48,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:48,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:48,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:48,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:48,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:48,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:48,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:48,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:48,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:49,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:49,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:49,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:49,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:49,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:49,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:49,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:49,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:49,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:49,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:49,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:49,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:50,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:50,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:50,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:50,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:50,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:50,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:50,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:50,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:50,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:50,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:50,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:50,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:50,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:53,573 INFO L134 CoverageAnalysis]: Checked inductivity of 5085 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5085 trivial. 0 not checked. [2020-11-07 00:28:53,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494975519] [2020-11-07 00:28:53,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:28:53,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2020-11-07 00:28:53,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564276594] [2020-11-07 00:28:53,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-11-07 00:28:53,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:28:53,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-11-07 00:28:53,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1134, Invalid=1416, Unknown=0, NotChecked=0, Total=2550 [2020-11-07 00:28:53,575 INFO L87 Difference]: Start difference. First operand 279 states and 293 transitions. Second operand 51 states. [2020-11-07 00:28:57,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:28:57,804 INFO L93 Difference]: Finished difference Result 291 states and 305 transitions. [2020-11-07 00:28:57,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-11-07 00:28:57,805 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 481 [2020-11-07 00:28:57,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:28:57,808 INFO L225 Difference]: With dead ends: 291 [2020-11-07 00:28:57,808 INFO L226 Difference]: Without dead ends: 284 [2020-11-07 00:28:57,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2258 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=3589, Invalid=6511, Unknown=0, NotChecked=0, Total=10100 [2020-11-07 00:28:57,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-11-07 00:28:57,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2020-11-07 00:28:57,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-11-07 00:28:57,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 298 transitions. [2020-11-07 00:28:57,850 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 298 transitions. Word has length 481 [2020-11-07 00:28:57,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:28:57,851 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 298 transitions. [2020-11-07 00:28:57,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-11-07 00:28:57,851 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 298 transitions. [2020-11-07 00:28:57,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2020-11-07 00:28:57,855 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:28:57,856 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 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 00:28:57,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-11-07 00:28:57,856 INFO L429 AbstractCegarLoop]: === Iteration 48 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:28:57,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:28:57,857 INFO L82 PathProgramCache]: Analyzing trace with hash 267483175, now seen corresponding path program 46 times [2020-11-07 00:28:57,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:28:57,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917059542] [2020-11-07 00:28:57,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:28:57,861 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:28:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:58,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:28:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:58,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:28:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:58,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:58,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:58,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:58,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:58,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:58,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:59,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:59,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:59,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:59,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:59,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:59,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:59,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:28:59,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:28:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:00,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:00,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:00,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:00,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:00,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:00,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:00,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:00,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:00,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:00,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:01,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:01,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:01,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:01,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:01,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:01,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:01,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:01,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:01,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:01,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:01,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:01,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:02,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:02,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:02,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:02,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:02,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:02,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:02,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:02,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:02,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:02,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5313 trivial. 0 not checked. [2020-11-07 00:29:05,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917059542] [2020-11-07 00:29:05,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:29:05,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2020-11-07 00:29:05,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710400794] [2020-11-07 00:29:05,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-11-07 00:29:05,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:29:05,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-11-07 00:29:05,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1182, Invalid=1470, Unknown=0, NotChecked=0, Total=2652 [2020-11-07 00:29:05,624 INFO L87 Difference]: Start difference. First operand 284 states and 298 transitions. Second operand 52 states. [2020-11-07 00:29:09,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:29:09,979 INFO L93 Difference]: Finished difference Result 296 states and 310 transitions. [2020-11-07 00:29:09,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-11-07 00:29:09,979 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 491 [2020-11-07 00:29:09,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:29:09,982 INFO L225 Difference]: With dead ends: 296 [2020-11-07 00:29:09,983 INFO L226 Difference]: Without dead ends: 289 [2020-11-07 00:29:09,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2354 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=3737, Invalid=6769, Unknown=0, NotChecked=0, Total=10506 [2020-11-07 00:29:09,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-11-07 00:29:10,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2020-11-07 00:29:10,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-11-07 00:29:10,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 303 transitions. [2020-11-07 00:29:10,021 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 303 transitions. Word has length 491 [2020-11-07 00:29:10,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:29:10,022 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 303 transitions. [2020-11-07 00:29:10,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-11-07 00:29:10,022 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 303 transitions. [2020-11-07 00:29:10,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2020-11-07 00:29:10,026 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:29:10,027 INFO L422 BasicCegarLoop]: trace histogram [48, 48, 48, 47, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 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 00:29:10,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-11-07 00:29:10,027 INFO L429 AbstractCegarLoop]: === Iteration 49 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:29:10,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:29:10,028 INFO L82 PathProgramCache]: Analyzing trace with hash 722686569, now seen corresponding path program 47 times [2020-11-07 00:29:10,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:29:10,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826668709] [2020-11-07 00:29:10,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:29:10,031 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:29:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:10,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:29:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:10,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:29:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:10,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:10,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:10,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:10,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:11,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:11,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:11,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:11,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:11,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:11,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:11,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:11,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:11,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:12,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:12,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:12,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:12,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:12,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:12,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:12,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:12,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:12,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:13,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:13,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:13,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:13,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:13,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:13,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:13,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:13,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:13,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:13,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:14,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:14,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:14,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:14,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:14,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:14,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:14,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:14,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:14,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:14,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:14,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:15,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:15,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:15,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:15,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:15,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 5546 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5546 trivial. 0 not checked. [2020-11-07 00:29:18,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826668709] [2020-11-07 00:29:18,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:29:18,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2020-11-07 00:29:18,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641309353] [2020-11-07 00:29:18,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-11-07 00:29:18,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:29:18,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-11-07 00:29:18,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1231, Invalid=1525, Unknown=0, NotChecked=0, Total=2756 [2020-11-07 00:29:18,878 INFO L87 Difference]: Start difference. First operand 289 states and 303 transitions. Second operand 53 states. [2020-11-07 00:29:23,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:29:23,251 INFO L93 Difference]: Finished difference Result 301 states and 315 transitions. [2020-11-07 00:29:23,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-11-07 00:29:23,252 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 501 [2020-11-07 00:29:23,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:29:23,255 INFO L225 Difference]: With dead ends: 301 [2020-11-07 00:29:23,255 INFO L226 Difference]: Without dead ends: 294 [2020-11-07 00:29:23,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2452 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=3888, Invalid=7032, Unknown=0, NotChecked=0, Total=10920 [2020-11-07 00:29:23,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-11-07 00:29:23,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-11-07 00:29:23,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-11-07 00:29:23,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 308 transitions. [2020-11-07 00:29:23,292 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 308 transitions. Word has length 501 [2020-11-07 00:29:23,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:29:23,293 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 308 transitions. [2020-11-07 00:29:23,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-11-07 00:29:23,293 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 308 transitions. [2020-11-07 00:29:23,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-11-07 00:29:23,297 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:29:23,297 INFO L422 BasicCegarLoop]: trace histogram [49, 49, 49, 48, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 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 00:29:23,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-11-07 00:29:23,297 INFO L429 AbstractCegarLoop]: === Iteration 50 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:29:23,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:29:23,298 INFO L82 PathProgramCache]: Analyzing trace with hash 390555751, now seen corresponding path program 48 times [2020-11-07 00:29:23,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:29:23,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678813397] [2020-11-07 00:29:23,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:29:23,301 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:29:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:23,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:29:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:23,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:29:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:23,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:23,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:23,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:24,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:24,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:24,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:24,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:24,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:24,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:24,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:24,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:25,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:25,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:25,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:25,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:25,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:25,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:25,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:25,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:25,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:25,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:26,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:26,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:26,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:26,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:26,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:26,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:26,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:26,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:26,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:26,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:27,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:28,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:28,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:28,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:28,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:31,543 INFO L134 CoverageAnalysis]: Checked inductivity of 5784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5784 trivial. 0 not checked. [2020-11-07 00:29:31,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678813397] [2020-11-07 00:29:31,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:29:31,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2020-11-07 00:29:31,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536946850] [2020-11-07 00:29:31,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-11-07 00:29:31,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:29:31,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-11-07 00:29:31,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1281, Invalid=1581, Unknown=0, NotChecked=0, Total=2862 [2020-11-07 00:29:31,546 INFO L87 Difference]: Start difference. First operand 294 states and 308 transitions. Second operand 54 states. [2020-11-07 00:29:36,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:29:36,118 INFO L93 Difference]: Finished difference Result 306 states and 320 transitions. [2020-11-07 00:29:36,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-11-07 00:29:36,119 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 511 [2020-11-07 00:29:36,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:29:36,123 INFO L225 Difference]: With dead ends: 306 [2020-11-07 00:29:36,123 INFO L226 Difference]: Without dead ends: 299 [2020-11-07 00:29:36,126 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2552 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=4042, Invalid=7300, Unknown=0, NotChecked=0, Total=11342 [2020-11-07 00:29:36,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-11-07 00:29:36,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2020-11-07 00:29:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-11-07 00:29:36,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 313 transitions. [2020-11-07 00:29:36,165 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 313 transitions. Word has length 511 [2020-11-07 00:29:36,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:29:36,165 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 313 transitions. [2020-11-07 00:29:36,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-11-07 00:29:36,165 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 313 transitions. [2020-11-07 00:29:36,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2020-11-07 00:29:36,170 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:29:36,170 INFO L422 BasicCegarLoop]: trace histogram [50, 50, 50, 49, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 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 00:29:36,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-11-07 00:29:36,171 INFO L429 AbstractCegarLoop]: === Iteration 51 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:29:36,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:29:36,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1849980969, now seen corresponding path program 49 times [2020-11-07 00:29:36,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:29:36,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195267143] [2020-11-07 00:29:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:29:36,175 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:29:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:36,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:29:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:36,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:29:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:36,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:36,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:36,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:37,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:37,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:37,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:37,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:37,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:37,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:37,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:37,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:38,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:38,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:38,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:38,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:38,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:38,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:38,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:38,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:39,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:39,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:39,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:39,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:39,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:39,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:39,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:39,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:40,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:40,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:40,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:40,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:40,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:40,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:40,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:40,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:40,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:40,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:40,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:41,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:41,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:41,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:41,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:41,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:41,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:41,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:41,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:41,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:41,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:41,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:45,715 INFO L134 CoverageAnalysis]: Checked inductivity of 6027 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6027 trivial. 0 not checked. [2020-11-07 00:29:45,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195267143] [2020-11-07 00:29:45,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:29:45,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [] total 55 [2020-11-07 00:29:45,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222006860] [2020-11-07 00:29:45,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-11-07 00:29:45,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:29:45,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-11-07 00:29:45,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1332, Invalid=1638, Unknown=0, NotChecked=0, Total=2970 [2020-11-07 00:29:45,719 INFO L87 Difference]: Start difference. First operand 299 states and 313 transitions. Second operand 55 states. [2020-11-07 00:29:50,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:29:50,530 INFO L93 Difference]: Finished difference Result 311 states and 325 transitions. [2020-11-07 00:29:50,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-11-07 00:29:50,531 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 521 [2020-11-07 00:29:50,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:29:50,535 INFO L225 Difference]: With dead ends: 311 [2020-11-07 00:29:50,535 INFO L226 Difference]: Without dead ends: 304 [2020-11-07 00:29:50,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2654 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=4199, Invalid=7573, Unknown=0, NotChecked=0, Total=11772 [2020-11-07 00:29:50,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-11-07 00:29:50,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-11-07 00:29:50,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-11-07 00:29:50,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 318 transitions. [2020-11-07 00:29:50,565 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 318 transitions. Word has length 521 [2020-11-07 00:29:50,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:29:50,565 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 318 transitions. [2020-11-07 00:29:50,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 55 states. [2020-11-07 00:29:50,566 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 318 transitions. [2020-11-07 00:29:50,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2020-11-07 00:29:50,570 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:29:50,571 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 51, 50, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 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 00:29:50,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-11-07 00:29:50,571 INFO L429 AbstractCegarLoop]: === Iteration 52 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:29:50,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:29:50,572 INFO L82 PathProgramCache]: Analyzing trace with hash 544295079, now seen corresponding path program 50 times [2020-11-07 00:29:50,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:29:50,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434612434] [2020-11-07 00:29:50,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:29:50,576 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:29:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:50,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:29:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:50,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:29:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:50,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:51,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:51,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:51,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:51,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:51,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:51,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:52,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:52,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:52,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:52,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:52,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:52,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:52,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:52,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:53,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:53,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:53,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:53,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:53,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:53,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:53,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:53,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:53,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:53,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:54,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:54,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:54,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:54,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:54,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:54,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:54,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:54,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:54,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:54,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:54,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:55,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:55,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:55,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:55,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:55,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:55,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:55,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:55,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:55,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:55,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:55,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:55,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:56,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:56,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:56,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:29:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:29:59,828 INFO L134 CoverageAnalysis]: Checked inductivity of 6275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6275 trivial. 0 not checked. [2020-11-07 00:29:59,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434612434] [2020-11-07 00:29:59,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:29:59,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2020-11-07 00:29:59,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245258261] [2020-11-07 00:29:59,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 56 states [2020-11-07 00:29:59,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:29:59,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2020-11-07 00:29:59,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1384, Invalid=1696, Unknown=0, NotChecked=0, Total=3080 [2020-11-07 00:29:59,830 INFO L87 Difference]: Start difference. First operand 304 states and 318 transitions. Second operand 56 states. [2020-11-07 00:30:04,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:30:04,551 INFO L93 Difference]: Finished difference Result 316 states and 330 transitions. [2020-11-07 00:30:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-11-07 00:30:04,551 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 531 [2020-11-07 00:30:04,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:30:04,555 INFO L225 Difference]: With dead ends: 316 [2020-11-07 00:30:04,555 INFO L226 Difference]: Without dead ends: 309 [2020-11-07 00:30:04,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2758 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=4359, Invalid=7851, Unknown=0, NotChecked=0, Total=12210 [2020-11-07 00:30:04,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-11-07 00:30:04,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2020-11-07 00:30:04,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-11-07 00:30:04,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 323 transitions. [2020-11-07 00:30:04,594 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 323 transitions. Word has length 531 [2020-11-07 00:30:04,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:30:04,595 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 323 transitions. [2020-11-07 00:30:04,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 56 states. [2020-11-07 00:30:04,595 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 323 transitions. [2020-11-07 00:30:04,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2020-11-07 00:30:04,599 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:30:04,599 INFO L422 BasicCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 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 00:30:04,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-11-07 00:30:04,600 INFO L429 AbstractCegarLoop]: === Iteration 53 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:30:04,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:30:04,600 INFO L82 PathProgramCache]: Analyzing trace with hash 164933097, now seen corresponding path program 51 times [2020-11-07 00:30:04,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:30:04,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2028547778] [2020-11-07 00:30:04,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:30:04,604 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:30:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:04,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:30:04,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:04,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:30:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:05,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:05,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:05,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:05,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:05,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:05,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:05,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:06,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:06,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:06,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:06,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:06,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:06,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:06,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:06,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:07,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:07,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:07,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:07,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:07,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:07,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:07,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:07,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:08,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:08,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:08,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:08,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:08,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:08,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:08,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:08,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:08,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:08,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:08,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:09,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:09,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:09,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:09,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:09,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:09,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:09,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:09,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:09,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:09,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:09,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:09,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:10,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:10,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:10,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:10,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:10,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:10,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 6528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6528 trivial. 0 not checked. [2020-11-07 00:30:14,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2028547778] [2020-11-07 00:30:14,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:30:14,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2020-11-07 00:30:14,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715016969] [2020-11-07 00:30:14,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-11-07 00:30:14,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:30:14,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-11-07 00:30:14,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1437, Invalid=1755, Unknown=0, NotChecked=0, Total=3192 [2020-11-07 00:30:14,491 INFO L87 Difference]: Start difference. First operand 309 states and 323 transitions. Second operand 57 states. [2020-11-07 00:30:19,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:30:19,163 INFO L93 Difference]: Finished difference Result 321 states and 335 transitions. [2020-11-07 00:30:19,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-11-07 00:30:19,163 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 541 [2020-11-07 00:30:19,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:30:19,166 INFO L225 Difference]: With dead ends: 321 [2020-11-07 00:30:19,166 INFO L226 Difference]: Without dead ends: 314 [2020-11-07 00:30:19,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2864 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=4522, Invalid=8134, Unknown=0, NotChecked=0, Total=12656 [2020-11-07 00:30:19,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-11-07 00:30:19,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2020-11-07 00:30:19,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-11-07 00:30:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 328 transitions. [2020-11-07 00:30:19,205 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 328 transitions. Word has length 541 [2020-11-07 00:30:19,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:30:19,205 INFO L481 AbstractCegarLoop]: Abstraction has 314 states and 328 transitions. [2020-11-07 00:30:19,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-11-07 00:30:19,205 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 328 transitions. [2020-11-07 00:30:19,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2020-11-07 00:30:19,209 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:30:19,210 INFO L422 BasicCegarLoop]: trace histogram [53, 53, 53, 52, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 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 00:30:19,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-11-07 00:30:19,210 INFO L429 AbstractCegarLoop]: === Iteration 54 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:30:19,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:30:19,211 INFO L82 PathProgramCache]: Analyzing trace with hash -48031513, now seen corresponding path program 52 times [2020-11-07 00:30:19,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:30:19,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644784584] [2020-11-07 00:30:19,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:30:19,215 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:30:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:19,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:30:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:19,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:30:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:19,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:19,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:19,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:20,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:20,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:20,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:20,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:20,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:20,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:20,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:21,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:21,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:21,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:21,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:21,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:21,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:21,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:21,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:21,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:22,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:22,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:22,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:22,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:22,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:22,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:22,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:22,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:22,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:23,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:23,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:23,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:23,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:23,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:23,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:23,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:23,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:23,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:23,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:24,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:24,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:24,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:24,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:24,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:24,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:24,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:24,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:24,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:24,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:24,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:24,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:24,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:25,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:25,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:25,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:29,293 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6786 trivial. 0 not checked. [2020-11-07 00:30:29,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644784584] [2020-11-07 00:30:29,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:30:29,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2020-11-07 00:30:29,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813041770] [2020-11-07 00:30:29,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 58 states [2020-11-07 00:30:29,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:30:29,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2020-11-07 00:30:29,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1491, Invalid=1815, Unknown=0, NotChecked=0, Total=3306 [2020-11-07 00:30:29,296 INFO L87 Difference]: Start difference. First operand 314 states and 328 transitions. Second operand 58 states. [2020-11-07 00:30:34,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:30:34,440 INFO L93 Difference]: Finished difference Result 326 states and 340 transitions. [2020-11-07 00:30:34,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-11-07 00:30:34,441 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 551 [2020-11-07 00:30:34,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:30:34,444 INFO L225 Difference]: With dead ends: 326 [2020-11-07 00:30:34,444 INFO L226 Difference]: Without dead ends: 319 [2020-11-07 00:30:34,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2972 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=4688, Invalid=8422, Unknown=0, NotChecked=0, Total=13110 [2020-11-07 00:30:34,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-11-07 00:30:34,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2020-11-07 00:30:34,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-11-07 00:30:34,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 333 transitions. [2020-11-07 00:30:34,485 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 333 transitions. Word has length 551 [2020-11-07 00:30:34,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:30:34,486 INFO L481 AbstractCegarLoop]: Abstraction has 319 states and 333 transitions. [2020-11-07 00:30:34,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 58 states. [2020-11-07 00:30:34,486 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 333 transitions. [2020-11-07 00:30:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2020-11-07 00:30:34,491 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:30:34,491 INFO L422 BasicCegarLoop]: trace histogram [54, 54, 54, 53, 53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 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 00:30:34,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-11-07 00:30:34,492 INFO L429 AbstractCegarLoop]: === Iteration 55 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:30:34,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:30:34,492 INFO L82 PathProgramCache]: Analyzing trace with hash 470807465, now seen corresponding path program 53 times [2020-11-07 00:30:34,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:30:34,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1377999466] [2020-11-07 00:30:34,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:30:34,496 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:30:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:34,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:30:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:34,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:30:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:34,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:35,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:35,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:35,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:35,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:35,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:35,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:36,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:36,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:36,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:36,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:36,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:36,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:36,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:36,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:37,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:37,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:37,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:37,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:37,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:37,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:37,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:38,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:38,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:38,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:38,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:38,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:38,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:38,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:38,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:38,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:38,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:39,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:39,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:39,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:39,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:39,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:39,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:39,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:39,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:39,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:39,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:39,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:40,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:40,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:40,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:40,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:40,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:40,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:40,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:40,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:40,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:40,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:40,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:45,103 INFO L134 CoverageAnalysis]: Checked inductivity of 7049 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7049 trivial. 0 not checked. [2020-11-07 00:30:45,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1377999466] [2020-11-07 00:30:45,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:30:45,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [] total 59 [2020-11-07 00:30:45,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910442274] [2020-11-07 00:30:45,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-11-07 00:30:45,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:30:45,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-11-07 00:30:45,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1546, Invalid=1876, Unknown=0, NotChecked=0, Total=3422 [2020-11-07 00:30:45,106 INFO L87 Difference]: Start difference. First operand 319 states and 333 transitions. Second operand 59 states. [2020-11-07 00:30:50,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:30:50,240 INFO L93 Difference]: Finished difference Result 331 states and 345 transitions. [2020-11-07 00:30:50,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-11-07 00:30:50,241 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 561 [2020-11-07 00:30:50,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:30:50,244 INFO L225 Difference]: With dead ends: 331 [2020-11-07 00:30:50,244 INFO L226 Difference]: Without dead ends: 324 [2020-11-07 00:30:50,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3082 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=4857, Invalid=8715, Unknown=0, NotChecked=0, Total=13572 [2020-11-07 00:30:50,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-11-07 00:30:50,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2020-11-07 00:30:50,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-11-07 00:30:50,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 338 transitions. [2020-11-07 00:30:50,276 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 338 transitions. Word has length 561 [2020-11-07 00:30:50,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:30:50,276 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 338 transitions. [2020-11-07 00:30:50,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 59 states. [2020-11-07 00:30:50,276 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 338 transitions. [2020-11-07 00:30:50,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2020-11-07 00:30:50,280 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:30:50,281 INFO L422 BasicCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 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 00:30:50,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-11-07 00:30:50,281 INFO L429 AbstractCegarLoop]: === Iteration 56 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:30:50,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:30:50,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1041291559, now seen corresponding path program 54 times [2020-11-07 00:30:50,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:30:50,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [575552617] [2020-11-07 00:30:50,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:30:50,285 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:30:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:50,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:30:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:50,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:30:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:50,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:50,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:51,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:51,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:51,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:51,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:51,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:51,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:51,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:52,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:52,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:52,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:52,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:52,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:52,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:52,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:53,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:53,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:53,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:53,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:53,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:53,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:53,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:53,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:54,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:54,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:54,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:54,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:54,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:54,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:54,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:54,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:54,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:54,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:55,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:55,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:55,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:55,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:55,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:55,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:55,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:55,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:55,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:55,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:55,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:55,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:55,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:56,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:56,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:56,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:56,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:56,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:56,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:56,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:56,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:56,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:56,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:30:56,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:30:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:01,342 INFO L134 CoverageAnalysis]: Checked inductivity of 7317 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7317 trivial. 0 not checked. [2020-11-07 00:31:01,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [575552617] [2020-11-07 00:31:01,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:31:01,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2020-11-07 00:31:01,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733556049] [2020-11-07 00:31:01,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 60 states [2020-11-07 00:31:01,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:31:01,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2020-11-07 00:31:01,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1602, Invalid=1938, Unknown=0, NotChecked=0, Total=3540 [2020-11-07 00:31:01,344 INFO L87 Difference]: Start difference. First operand 324 states and 338 transitions. Second operand 60 states. [2020-11-07 00:31:06,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:31:06,661 INFO L93 Difference]: Finished difference Result 336 states and 350 transitions. [2020-11-07 00:31:06,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-11-07 00:31:06,662 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 571 [2020-11-07 00:31:06,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:31:06,665 INFO L225 Difference]: With dead ends: 336 [2020-11-07 00:31:06,665 INFO L226 Difference]: Without dead ends: 329 [2020-11-07 00:31:06,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3194 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=5029, Invalid=9013, Unknown=0, NotChecked=0, Total=14042 [2020-11-07 00:31:06,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-11-07 00:31:06,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2020-11-07 00:31:06,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-11-07 00:31:06,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 343 transitions. [2020-11-07 00:31:06,704 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 343 transitions. Word has length 571 [2020-11-07 00:31:06,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:31:06,705 INFO L481 AbstractCegarLoop]: Abstraction has 329 states and 343 transitions. [2020-11-07 00:31:06,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 60 states. [2020-11-07 00:31:06,705 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 343 transitions. [2020-11-07 00:31:06,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2020-11-07 00:31:06,708 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:31:06,708 INFO L422 BasicCegarLoop]: trace histogram [56, 56, 56, 55, 55, 55, 55, 55, 55, 55, 1, 1, 1, 1, 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 00:31:06,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-11-07 00:31:06,709 INFO L429 AbstractCegarLoop]: === Iteration 57 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:31:06,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:31:06,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1539159703, now seen corresponding path program 55 times [2020-11-07 00:31:06,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:31:06,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168484759] [2020-11-07 00:31:06,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:31:06,712 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:31:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:07,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:31:07,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:07,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:31:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:07,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:07,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:07,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:07,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:08,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:08,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:08,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:08,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:08,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:08,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:09,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:09,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:09,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:09,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:09,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:09,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:09,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:09,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:10,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:10,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:10,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:10,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:10,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:10,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:10,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:10,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:11,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:11,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:11,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:11,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:11,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:11,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:11,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:11,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:11,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:11,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:11,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:12,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:12,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:12,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:12,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:12,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:12,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:12,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:12,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:12,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:12,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:12,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:13,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:13,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:13,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:13,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:13,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:13,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:13,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:13,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:18,468 INFO L134 CoverageAnalysis]: Checked inductivity of 7590 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7590 trivial. 0 not checked. [2020-11-07 00:31:18,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168484759] [2020-11-07 00:31:18,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:31:18,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [] total 61 [2020-11-07 00:31:18,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441079912] [2020-11-07 00:31:18,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 61 states [2020-11-07 00:31:18,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:31:18,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2020-11-07 00:31:18,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1659, Invalid=2001, Unknown=0, NotChecked=0, Total=3660 [2020-11-07 00:31:18,471 INFO L87 Difference]: Start difference. First operand 329 states and 343 transitions. Second operand 61 states. [2020-11-07 00:31:23,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:31:23,902 INFO L93 Difference]: Finished difference Result 341 states and 355 transitions. [2020-11-07 00:31:23,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-11-07 00:31:23,903 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 581 [2020-11-07 00:31:23,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:31:23,906 INFO L225 Difference]: With dead ends: 341 [2020-11-07 00:31:23,906 INFO L226 Difference]: Without dead ends: 334 [2020-11-07 00:31:23,909 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3308 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=5204, Invalid=9316, Unknown=0, NotChecked=0, Total=14520 [2020-11-07 00:31:23,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-11-07 00:31:23,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2020-11-07 00:31:23,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-11-07 00:31:23,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 348 transitions. [2020-11-07 00:31:23,935 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 348 transitions. Word has length 581 [2020-11-07 00:31:23,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:31:23,935 INFO L481 AbstractCegarLoop]: Abstraction has 334 states and 348 transitions. [2020-11-07 00:31:23,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 61 states. [2020-11-07 00:31:23,935 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 348 transitions. [2020-11-07 00:31:23,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-11-07 00:31:23,938 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:31:23,938 INFO L422 BasicCegarLoop]: trace histogram [57, 57, 57, 56, 56, 56, 56, 56, 56, 56, 1, 1, 1, 1, 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 00:31:23,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-11-07 00:31:23,939 INFO L429 AbstractCegarLoop]: === Iteration 58 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:31:23,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:31:23,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1928235367, now seen corresponding path program 56 times [2020-11-07 00:31:23,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:31:23,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352647325] [2020-11-07 00:31:23,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:31:23,942 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:31:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:24,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:31:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:24,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:31:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:24,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:24,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:24,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:24,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:25,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:25,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:25,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:25,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:25,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:25,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:25,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:26,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:26,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:26,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:26,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:26,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:26,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:27,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:27,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:27,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:27,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:27,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:27,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:27,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:28,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:28,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:28,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:28,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:28,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:28,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:28,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:28,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:28,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:29,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:29,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:29,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:29,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:29,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:29,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:29,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:29,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:29,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:29,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:30,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:30,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:30,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:30,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:30,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:30,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:30,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:30,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:30,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:30,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:31,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:31,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:31,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:31,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:31,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:31,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:36,410 INFO L134 CoverageAnalysis]: Checked inductivity of 7868 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7868 trivial. 0 not checked. [2020-11-07 00:31:36,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [352647325] [2020-11-07 00:31:36,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:31:36,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2020-11-07 00:31:36,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007219368] [2020-11-07 00:31:36,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 62 states [2020-11-07 00:31:36,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:31:36,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2020-11-07 00:31:36,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1717, Invalid=2065, Unknown=0, NotChecked=0, Total=3782 [2020-11-07 00:31:36,413 INFO L87 Difference]: Start difference. First operand 334 states and 348 transitions. Second operand 62 states. [2020-11-07 00:31:42,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:31:42,129 INFO L93 Difference]: Finished difference Result 346 states and 360 transitions. [2020-11-07 00:31:42,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-11-07 00:31:42,130 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 591 [2020-11-07 00:31:42,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:31:42,133 INFO L225 Difference]: With dead ends: 346 [2020-11-07 00:31:42,133 INFO L226 Difference]: Without dead ends: 339 [2020-11-07 00:31:42,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3424 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=5382, Invalid=9624, Unknown=0, NotChecked=0, Total=15006 [2020-11-07 00:31:42,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-11-07 00:31:42,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2020-11-07 00:31:42,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-11-07 00:31:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 353 transitions. [2020-11-07 00:31:42,160 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 353 transitions. Word has length 591 [2020-11-07 00:31:42,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:31:42,161 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 353 transitions. [2020-11-07 00:31:42,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 62 states. [2020-11-07 00:31:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 353 transitions. [2020-11-07 00:31:42,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2020-11-07 00:31:42,165 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:31:42,166 INFO L422 BasicCegarLoop]: trace histogram [58, 58, 58, 57, 57, 57, 57, 57, 57, 57, 1, 1, 1, 1, 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 00:31:42,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-11-07 00:31:42,166 INFO L429 AbstractCegarLoop]: === Iteration 59 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:31:42,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:31:42,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1119334185, now seen corresponding path program 57 times [2020-11-07 00:31:42,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:31:42,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611925463] [2020-11-07 00:31:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:31:42,169 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:31:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:42,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:31:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:42,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:31:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:42,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:42,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:42,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:43,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:43,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:43,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:43,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:43,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:44,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:44,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:44,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:44,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:44,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:44,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:45,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:45,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:45,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:45,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:45,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:45,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:45,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:46,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:46,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:46,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:46,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:46,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:46,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:46,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:47,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:47,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:47,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:47,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:47,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:47,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:47,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:47,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:48,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:48,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:48,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:48,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:48,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:48,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:48,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:48,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:48,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:48,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:49,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:49,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:49,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:49,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:49,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:49,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:49,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:49,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:49,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:50,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:50,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:50,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:31:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:31:56,012 INFO L134 CoverageAnalysis]: Checked inductivity of 8151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2020-11-07 00:31:56,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611925463] [2020-11-07 00:31:56,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:31:56,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2020-11-07 00:31:56,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434518055] [2020-11-07 00:31:56,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-11-07 00:31:56,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:31:56,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-11-07 00:31:56,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1776, Invalid=2130, Unknown=0, NotChecked=0, Total=3906 [2020-11-07 00:31:56,015 INFO L87 Difference]: Start difference. First operand 339 states and 353 transitions. Second operand 63 states. [2020-11-07 00:32:01,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:32:01,890 INFO L93 Difference]: Finished difference Result 351 states and 365 transitions. [2020-11-07 00:32:01,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-11-07 00:32:01,891 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 601 [2020-11-07 00:32:01,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:32:01,894 INFO L225 Difference]: With dead ends: 351 [2020-11-07 00:32:01,894 INFO L226 Difference]: Without dead ends: 344 [2020-11-07 00:32:01,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3542 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=5563, Invalid=9937, Unknown=0, NotChecked=0, Total=15500 [2020-11-07 00:32:01,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-11-07 00:32:01,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2020-11-07 00:32:01,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-11-07 00:32:01,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 358 transitions. [2020-11-07 00:32:01,931 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 358 transitions. Word has length 601 [2020-11-07 00:32:01,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:32:01,931 INFO L481 AbstractCegarLoop]: Abstraction has 344 states and 358 transitions. [2020-11-07 00:32:01,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-11-07 00:32:01,932 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 358 transitions. [2020-11-07 00:32:01,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2020-11-07 00:32:01,936 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:32:01,937 INFO L422 BasicCegarLoop]: trace histogram [59, 59, 59, 58, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 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 00:32:01,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2020-11-07 00:32:01,937 INFO L429 AbstractCegarLoop]: === Iteration 60 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:32:01,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:32:01,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1785735591, now seen corresponding path program 58 times [2020-11-07 00:32:01,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:32:01,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124118754] [2020-11-07 00:32:01,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:32:01,941 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:32:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:02,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:32:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:02,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:32:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:02,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:02,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:02,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:03,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:03,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:03,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:03,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:03,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:04,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:04,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:04,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:04,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:04,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:05,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:05,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:05,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:05,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:05,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:05,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:05,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:06,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:06,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:06,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:06,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:06,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:06,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:06,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:07,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:07,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:07,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:07,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:07,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:07,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:07,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:08,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:08,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:08,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:08,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:08,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:08,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:08,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:08,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:09,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:09,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:09,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:09,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:09,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:09,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:09,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:09,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:09,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:09,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:09,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:09,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:10,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:10,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:10,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:10,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:10,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:16,097 INFO L134 CoverageAnalysis]: Checked inductivity of 8439 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8439 trivial. 0 not checked. [2020-11-07 00:32:16,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124118754] [2020-11-07 00:32:16,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:32:16,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2020-11-07 00:32:16,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522697545] [2020-11-07 00:32:16,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 64 states [2020-11-07 00:32:16,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:32:16,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2020-11-07 00:32:16,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1836, Invalid=2196, Unknown=0, NotChecked=0, Total=4032 [2020-11-07 00:32:16,101 INFO L87 Difference]: Start difference. First operand 344 states and 358 transitions. Second operand 64 states. [2020-11-07 00:32:22,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:32:22,167 INFO L93 Difference]: Finished difference Result 356 states and 370 transitions. [2020-11-07 00:32:22,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-11-07 00:32:22,168 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 611 [2020-11-07 00:32:22,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:32:22,172 INFO L225 Difference]: With dead ends: 356 [2020-11-07 00:32:22,172 INFO L226 Difference]: Without dead ends: 349 [2020-11-07 00:32:22,175 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3662 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=5747, Invalid=10255, Unknown=0, NotChecked=0, Total=16002 [2020-11-07 00:32:22,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-11-07 00:32:22,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2020-11-07 00:32:22,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-11-07 00:32:22,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 363 transitions. [2020-11-07 00:32:22,210 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 363 transitions. Word has length 611 [2020-11-07 00:32:22,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:32:22,211 INFO L481 AbstractCegarLoop]: Abstraction has 349 states and 363 transitions. [2020-11-07 00:32:22,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 64 states. [2020-11-07 00:32:22,211 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 363 transitions. [2020-11-07 00:32:22,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2020-11-07 00:32:22,215 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:32:22,215 INFO L422 BasicCegarLoop]: trace histogram [60, 60, 60, 59, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 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 00:32:22,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2020-11-07 00:32:22,215 INFO L429 AbstractCegarLoop]: === Iteration 61 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:32:22,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:32:22,216 INFO L82 PathProgramCache]: Analyzing trace with hash -121887511, now seen corresponding path program 59 times [2020-11-07 00:32:22,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:32:22,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308696458] [2020-11-07 00:32:22,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:32:22,219 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:32:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:22,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:32:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:22,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:32:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:22,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:23,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:23,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:23,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:23,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:23,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:24,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:24,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:24,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:24,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:24,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:24,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:25,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:25,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:25,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:25,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:25,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:25,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:25,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:26,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:26,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:26,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:26,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:26,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:26,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:26,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:27,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:27,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:27,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:27,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:27,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:27,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:27,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:27,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:28,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:28,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:28,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:28,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:28,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:28,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:28,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:28,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:28,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:28,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:29,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:29,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:29,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:29,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:29,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:29,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:29,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:29,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:29,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:29,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:30,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:30,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:30,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:30,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:30,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:36,191 INFO L134 CoverageAnalysis]: Checked inductivity of 8732 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8732 trivial. 0 not checked. [2020-11-07 00:32:36,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308696458] [2020-11-07 00:32:36,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:32:36,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [65] imperfect sequences [] total 65 [2020-11-07 00:32:36,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527768301] [2020-11-07 00:32:36,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 65 states [2020-11-07 00:32:36,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:32:36,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2020-11-07 00:32:36,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1897, Invalid=2263, Unknown=0, NotChecked=0, Total=4160 [2020-11-07 00:32:36,194 INFO L87 Difference]: Start difference. First operand 349 states and 363 transitions. Second operand 65 states. [2020-11-07 00:32:42,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:32:42,295 INFO L93 Difference]: Finished difference Result 361 states and 375 transitions. [2020-11-07 00:32:42,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-11-07 00:32:42,296 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 621 [2020-11-07 00:32:42,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:32:42,299 INFO L225 Difference]: With dead ends: 361 [2020-11-07 00:32:42,299 INFO L226 Difference]: Without dead ends: 354 [2020-11-07 00:32:42,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3784 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=5934, Invalid=10578, Unknown=0, NotChecked=0, Total=16512 [2020-11-07 00:32:42,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-11-07 00:32:42,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2020-11-07 00:32:42,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-11-07 00:32:42,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 368 transitions. [2020-11-07 00:32:42,326 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 368 transitions. Word has length 621 [2020-11-07 00:32:42,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:32:42,327 INFO L481 AbstractCegarLoop]: Abstraction has 354 states and 368 transitions. [2020-11-07 00:32:42,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 65 states. [2020-11-07 00:32:42,327 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 368 transitions. [2020-11-07 00:32:42,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2020-11-07 00:32:42,330 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:32:42,330 INFO L422 BasicCegarLoop]: trace histogram [61, 61, 61, 60, 60, 60, 60, 60, 60, 60, 1, 1, 1, 1, 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 00:32:42,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2020-11-07 00:32:42,330 INFO L429 AbstractCegarLoop]: === Iteration 62 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:32:42,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:32:42,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1917434343, now seen corresponding path program 60 times [2020-11-07 00:32:42,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:32:42,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731945285] [2020-11-07 00:32:42,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:32:42,333 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:32:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:42,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:32:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:42,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:32:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:42,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:42,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:43,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:43,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:43,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:43,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:44,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:44,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:44,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:44,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:44,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:44,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:45,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:45,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:45,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:45,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:45,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:45,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:46,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:46,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:46,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:46,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:46,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:46,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:46,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:47,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:47,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:47,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:47,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:47,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:47,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:47,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:48,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:48,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:48,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:48,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:48,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:48,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:48,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:48,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:49,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:49,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:49,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:49,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:49,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:49,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:49,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:49,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:49,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:50,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:50,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:50,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:50,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:50,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:50,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:50,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:50,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:50,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:50,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:50,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:51,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:32:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:32:57,041 INFO L134 CoverageAnalysis]: Checked inductivity of 9030 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9030 trivial. 0 not checked. [2020-11-07 00:32:57,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731945285] [2020-11-07 00:32:57,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:32:57,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2020-11-07 00:32:57,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810487572] [2020-11-07 00:32:57,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 66 states [2020-11-07 00:32:57,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:32:57,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2020-11-07 00:32:57,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1959, Invalid=2331, Unknown=0, NotChecked=0, Total=4290 [2020-11-07 00:32:57,044 INFO L87 Difference]: Start difference. First operand 354 states and 368 transitions. Second operand 66 states. [2020-11-07 00:33:03,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:33:03,530 INFO L93 Difference]: Finished difference Result 366 states and 380 transitions. [2020-11-07 00:33:03,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-11-07 00:33:03,531 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 631 [2020-11-07 00:33:03,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:33:03,534 INFO L225 Difference]: With dead ends: 366 [2020-11-07 00:33:03,534 INFO L226 Difference]: Without dead ends: 359 [2020-11-07 00:33:03,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3908 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=6124, Invalid=10906, Unknown=0, NotChecked=0, Total=17030 [2020-11-07 00:33:03,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-11-07 00:33:03,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2020-11-07 00:33:03,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-11-07 00:33:03,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 373 transitions. [2020-11-07 00:33:03,569 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 373 transitions. Word has length 631 [2020-11-07 00:33:03,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:33:03,570 INFO L481 AbstractCegarLoop]: Abstraction has 359 states and 373 transitions. [2020-11-07 00:33:03,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 66 states. [2020-11-07 00:33:03,570 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 373 transitions. [2020-11-07 00:33:03,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2020-11-07 00:33:03,573 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:33:03,574 INFO L422 BasicCegarLoop]: trace histogram [62, 62, 62, 61, 61, 61, 61, 61, 61, 61, 1, 1, 1, 1, 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 00:33:03,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2020-11-07 00:33:03,574 INFO L429 AbstractCegarLoop]: === Iteration 63 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:33:03,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:33:03,574 INFO L82 PathProgramCache]: Analyzing trace with hash -392451415, now seen corresponding path program 61 times [2020-11-07 00:33:03,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:33:03,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1088707092] [2020-11-07 00:33:03,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:33:03,577 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:33:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:03,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:33:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:03,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:33:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:04,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:04,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:04,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:04,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:04,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:05,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:05,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:05,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:05,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:05,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:06,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:06,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:06,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:06,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:06,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:07,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:07,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:07,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:07,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:07,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:08,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:08,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:08,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:08,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:08,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:08,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:08,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:09,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:09,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:09,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:09,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:09,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:09,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:10,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:10,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:10,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:10,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:10,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:10,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:10,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:10,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:10,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:11,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:11,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:11,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:11,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:11,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:11,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:11,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:11,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:11,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:12,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:12,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:12,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:12,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:12,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:12,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:12,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:12,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:12,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:12,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 9333 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9333 trivial. 0 not checked. [2020-11-07 00:33:19,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1088707092] [2020-11-07 00:33:19,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:33:19,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [] total 67 [2020-11-07 00:33:19,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760153446] [2020-11-07 00:33:19,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 67 states [2020-11-07 00:33:19,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:33:19,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2020-11-07 00:33:19,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2022, Invalid=2400, Unknown=0, NotChecked=0, Total=4422 [2020-11-07 00:33:19,564 INFO L87 Difference]: Start difference. First operand 359 states and 373 transitions. Second operand 67 states. [2020-11-07 00:33:26,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:33:26,256 INFO L93 Difference]: Finished difference Result 371 states and 385 transitions. [2020-11-07 00:33:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-11-07 00:33:26,257 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 641 [2020-11-07 00:33:26,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:33:26,260 INFO L225 Difference]: With dead ends: 371 [2020-11-07 00:33:26,260 INFO L226 Difference]: Without dead ends: 364 [2020-11-07 00:33:26,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4034 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=6317, Invalid=11239, Unknown=0, NotChecked=0, Total=17556 [2020-11-07 00:33:26,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-11-07 00:33:26,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2020-11-07 00:33:26,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-11-07 00:33:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 378 transitions. [2020-11-07 00:33:26,293 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 378 transitions. Word has length 641 [2020-11-07 00:33:26,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:33:26,293 INFO L481 AbstractCegarLoop]: Abstraction has 364 states and 378 transitions. [2020-11-07 00:33:26,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 67 states. [2020-11-07 00:33:26,293 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 378 transitions. [2020-11-07 00:33:26,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2020-11-07 00:33:26,297 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:33:26,297 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 62, 62, 62, 62, 1, 1, 1, 1, 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 00:33:26,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2020-11-07 00:33:26,298 INFO L429 AbstractCegarLoop]: === Iteration 64 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:33:26,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:33:26,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1758512601, now seen corresponding path program 62 times [2020-11-07 00:33:26,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:33:26,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788806365] [2020-11-07 00:33:26,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:33:26,302 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:33:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:26,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:33:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:26,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:33:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:26,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:27,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:27,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:27,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:27,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:28,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:28,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:28,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:28,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:28,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:29,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:29,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:29,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:29,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:29,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:30,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:30,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:30,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:30,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:30,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:30,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:31,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:31,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:31,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:31,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:31,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:31,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:32,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:32,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:32,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:32,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:32,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:32,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:32,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:32,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:33,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:33,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:33,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:33,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:33,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:33,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:33,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:33,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:34,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:34,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:34,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:34,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:34,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:34,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:34,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:34,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:34,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:35,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:35,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:35,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:35,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:35,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:35,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:35,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:35,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:35,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:36,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:36,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:43,167 INFO L134 CoverageAnalysis]: Checked inductivity of 9641 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9641 trivial. 0 not checked. [2020-11-07 00:33:43,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788806365] [2020-11-07 00:33:43,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:33:43,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2020-11-07 00:33:43,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747826809] [2020-11-07 00:33:43,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 68 states [2020-11-07 00:33:43,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:33:43,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2020-11-07 00:33:43,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2086, Invalid=2470, Unknown=0, NotChecked=0, Total=4556 [2020-11-07 00:33:43,173 INFO L87 Difference]: Start difference. First operand 364 states and 378 transitions. Second operand 68 states. [2020-11-07 00:33:50,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:33:50,023 INFO L93 Difference]: Finished difference Result 376 states and 390 transitions. [2020-11-07 00:33:50,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-11-07 00:33:50,024 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 651 [2020-11-07 00:33:50,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:33:50,028 INFO L225 Difference]: With dead ends: 376 [2020-11-07 00:33:50,028 INFO L226 Difference]: Without dead ends: 369 [2020-11-07 00:33:50,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4162 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=6513, Invalid=11577, Unknown=0, NotChecked=0, Total=18090 [2020-11-07 00:33:50,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-11-07 00:33:50,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 369. [2020-11-07 00:33:50,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-11-07 00:33:50,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 383 transitions. [2020-11-07 00:33:50,066 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 383 transitions. Word has length 651 [2020-11-07 00:33:50,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:33:50,066 INFO L481 AbstractCegarLoop]: Abstraction has 369 states and 383 transitions. [2020-11-07 00:33:50,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 68 states. [2020-11-07 00:33:50,067 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 383 transitions. [2020-11-07 00:33:50,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2020-11-07 00:33:50,071 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:33:50,072 INFO L422 BasicCegarLoop]: trace histogram [64, 64, 64, 63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1, 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 00:33:50,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2020-11-07 00:33:50,072 INFO L429 AbstractCegarLoop]: === Iteration 65 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:33:50,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:33:50,072 INFO L82 PathProgramCache]: Analyzing trace with hash 362954857, now seen corresponding path program 63 times [2020-11-07 00:33:50,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:33:50,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938985181] [2020-11-07 00:33:50,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:33:50,076 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:33:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:50,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:33:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:50,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:33:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:50,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:50,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:50,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:51,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:51,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:51,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:51,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:52,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:52,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:52,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:52,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:52,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:53,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:53,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:53,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:53,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:53,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:54,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:54,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:54,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:54,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:54,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:54,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:55,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:55,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:55,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:55,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:55,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:55,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:56,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:56,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:56,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:56,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:56,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:56,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:56,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:57,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:57,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:57,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:57,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:57,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:57,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:57,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:57,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:58,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:58,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:58,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:58,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:58,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:58,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:58,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:58,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:59,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:59,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:59,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:59,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:59,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:59,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:59,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:59,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:33:59,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:33:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:00,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:00,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:00,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9954 trivial. 0 not checked. [2020-11-07 00:34:07,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938985181] [2020-11-07 00:34:07,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:34:07,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [] total 69 [2020-11-07 00:34:07,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035792926] [2020-11-07 00:34:07,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 69 states [2020-11-07 00:34:07,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:34:07,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2020-11-07 00:34:07,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2151, Invalid=2541, Unknown=0, NotChecked=0, Total=4692 [2020-11-07 00:34:07,450 INFO L87 Difference]: Start difference. First operand 369 states and 383 transitions. Second operand 69 states. [2020-11-07 00:34:14,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:34:14,452 INFO L93 Difference]: Finished difference Result 381 states and 395 transitions. [2020-11-07 00:34:14,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-11-07 00:34:14,453 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 661 [2020-11-07 00:34:14,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:34:14,455 INFO L225 Difference]: With dead ends: 381 [2020-11-07 00:34:14,455 INFO L226 Difference]: Without dead ends: 374 [2020-11-07 00:34:14,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4292 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=6712, Invalid=11920, Unknown=0, NotChecked=0, Total=18632 [2020-11-07 00:34:14,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-11-07 00:34:14,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2020-11-07 00:34:14,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-11-07 00:34:14,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 388 transitions. [2020-11-07 00:34:14,489 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 388 transitions. Word has length 661 [2020-11-07 00:34:14,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:34:14,489 INFO L481 AbstractCegarLoop]: Abstraction has 374 states and 388 transitions. [2020-11-07 00:34:14,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 69 states. [2020-11-07 00:34:14,490 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 388 transitions. [2020-11-07 00:34:14,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2020-11-07 00:34:14,494 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:34:14,495 INFO L422 BasicCegarLoop]: trace histogram [65, 65, 65, 64, 64, 64, 64, 64, 64, 64, 1, 1, 1, 1, 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 00:34:14,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2020-11-07 00:34:14,495 INFO L429 AbstractCegarLoop]: === Iteration 66 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:34:14,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:34:14,496 INFO L82 PathProgramCache]: Analyzing trace with hash -455824793, now seen corresponding path program 64 times [2020-11-07 00:34:14,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:34:14,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242174258] [2020-11-07 00:34:14,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:34:14,498 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:34:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:14,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:34:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:14,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:34:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:15,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:15,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:15,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:15,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:16,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:16,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:16,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:16,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:16,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:17,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:17,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:17,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:17,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:17,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:18,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:18,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:18,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:18,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:19,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:19,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:19,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:19,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:19,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:19,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:20,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:20,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:20,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:20,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:20,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:20,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:20,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:21,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:21,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:21,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:21,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:21,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:21,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:21,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:22,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:22,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:22,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:22,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:22,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:22,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:22,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:23,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:23,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:23,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:23,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:23,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:23,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:23,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:23,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:23,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:24,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:24,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:24,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:24,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:24,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:24,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:24,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:24,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:24,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:25,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:32,435 INFO L134 CoverageAnalysis]: Checked inductivity of 10272 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10272 trivial. 0 not checked. [2020-11-07 00:34:32,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242174258] [2020-11-07 00:34:32,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:34:32,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2020-11-07 00:34:32,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57681928] [2020-11-07 00:34:32,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 70 states [2020-11-07 00:34:32,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:34:32,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2020-11-07 00:34:32,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2217, Invalid=2613, Unknown=0, NotChecked=0, Total=4830 [2020-11-07 00:34:32,438 INFO L87 Difference]: Start difference. First operand 374 states and 388 transitions. Second operand 70 states. [2020-11-07 00:34:39,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:34:39,352 INFO L93 Difference]: Finished difference Result 386 states and 400 transitions. [2020-11-07 00:34:39,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-11-07 00:34:39,353 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 671 [2020-11-07 00:34:39,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:34:39,356 INFO L225 Difference]: With dead ends: 386 [2020-11-07 00:34:39,356 INFO L226 Difference]: Without dead ends: 379 [2020-11-07 00:34:39,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4424 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=6914, Invalid=12268, Unknown=0, NotChecked=0, Total=19182 [2020-11-07 00:34:39,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-11-07 00:34:39,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2020-11-07 00:34:39,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2020-11-07 00:34:39,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 393 transitions. [2020-11-07 00:34:39,387 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 393 transitions. Word has length 671 [2020-11-07 00:34:39,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:34:39,388 INFO L481 AbstractCegarLoop]: Abstraction has 379 states and 393 transitions. [2020-11-07 00:34:39,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 70 states. [2020-11-07 00:34:39,388 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 393 transitions. [2020-11-07 00:34:39,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2020-11-07 00:34:39,391 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:34:39,392 INFO L422 BasicCegarLoop]: trace histogram [66, 66, 66, 65, 65, 65, 65, 65, 65, 65, 1, 1, 1, 1, 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 00:34:39,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2020-11-07 00:34:39,392 INFO L429 AbstractCegarLoop]: === Iteration 67 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:34:39,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:34:39,392 INFO L82 PathProgramCache]: Analyzing trace with hash 605808169, now seen corresponding path program 65 times [2020-11-07 00:34:39,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:34:39,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113045124] [2020-11-07 00:34:39,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:34:39,395 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:34:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:39,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:34:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:39,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:34:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:39,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:40,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:40,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:40,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:40,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:41,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:41,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:41,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:41,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:42,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:42,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:42,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:42,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:42,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:43,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:43,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:43,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:43,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:43,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:44,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:44,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:44,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:44,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:44,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:44,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:45,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:45,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:45,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:45,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:45,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:45,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:46,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:46,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:46,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:46,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:46,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:46,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:46,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:47,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:47,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:47,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:47,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:47,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:47,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:47,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:47,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:48,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:48,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:48,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:48,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:48,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:48,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:48,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:48,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:49,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:49,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:49,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:49,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:49,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:49,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:49,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:49,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:49,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:50,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:50,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:34:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:34:57,951 INFO L134 CoverageAnalysis]: Checked inductivity of 10595 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10595 trivial. 0 not checked. [2020-11-07 00:34:57,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113045124] [2020-11-07 00:34:57,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:34:57,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [] total 71 [2020-11-07 00:34:57,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568567442] [2020-11-07 00:34:57,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 71 states [2020-11-07 00:34:57,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:34:57,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2020-11-07 00:34:57,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2284, Invalid=2686, Unknown=0, NotChecked=0, Total=4970 [2020-11-07 00:34:57,954 INFO L87 Difference]: Start difference. First operand 379 states and 393 transitions. Second operand 71 states. [2020-11-07 00:35:05,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:35:05,117 INFO L93 Difference]: Finished difference Result 391 states and 405 transitions. [2020-11-07 00:35:05,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-11-07 00:35:05,119 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 681 [2020-11-07 00:35:05,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:35:05,121 INFO L225 Difference]: With dead ends: 391 [2020-11-07 00:35:05,122 INFO L226 Difference]: Without dead ends: 384 [2020-11-07 00:35:05,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4558 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=7119, Invalid=12621, Unknown=0, NotChecked=0, Total=19740 [2020-11-07 00:35:05,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2020-11-07 00:35:05,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2020-11-07 00:35:05,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-11-07 00:35:05,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 398 transitions. [2020-11-07 00:35:05,169 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 398 transitions. Word has length 681 [2020-11-07 00:35:05,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:35:05,170 INFO L481 AbstractCegarLoop]: Abstraction has 384 states and 398 transitions. [2020-11-07 00:35:05,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 71 states. [2020-11-07 00:35:05,170 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 398 transitions. [2020-11-07 00:35:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2020-11-07 00:35:05,176 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:35:05,177 INFO L422 BasicCegarLoop]: trace histogram [67, 67, 67, 66, 66, 66, 66, 66, 66, 66, 1, 1, 1, 1, 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 00:35:05,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2020-11-07 00:35:05,177 INFO L429 AbstractCegarLoop]: === Iteration 68 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:35:05,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:35:05,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1511126361, now seen corresponding path program 66 times [2020-11-07 00:35:05,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:35:05,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684056595] [2020-11-07 00:35:05,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:35:05,181 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:35:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:05,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:35:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:05,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:35:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:05,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:05,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:06,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:06,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:06,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:06,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:07,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:07,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:07,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:07,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:08,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:08,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:08,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:08,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:08,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:09,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:09,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:09,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:09,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:09,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:09,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:10,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:10,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:10,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:10,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:10,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:10,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:11,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:11,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:11,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:11,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:11,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:11,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:11,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:12,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:12,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:12,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:12,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:12,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:12,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:12,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:13,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:13,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:13,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:13,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:13,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:13,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:13,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:13,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:13,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:14,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:14,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:14,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:14,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:14,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:14,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:14,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:14,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:14,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:15,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:15,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:15,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:15,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:15,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:15,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:15,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:15,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:16,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:23,771 INFO L134 CoverageAnalysis]: Checked inductivity of 10923 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10923 trivial. 0 not checked. [2020-11-07 00:35:23,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684056595] [2020-11-07 00:35:23,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:35:23,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2020-11-07 00:35:23,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375447094] [2020-11-07 00:35:23,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 72 states [2020-11-07 00:35:23,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:35:23,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2020-11-07 00:35:23,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2352, Invalid=2760, Unknown=0, NotChecked=0, Total=5112 [2020-11-07 00:35:23,773 INFO L87 Difference]: Start difference. First operand 384 states and 398 transitions. Second operand 72 states. [2020-11-07 00:35:31,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:35:31,115 INFO L93 Difference]: Finished difference Result 396 states and 410 transitions. [2020-11-07 00:35:31,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-11-07 00:35:31,116 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 691 [2020-11-07 00:35:31,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:35:31,119 INFO L225 Difference]: With dead ends: 396 [2020-11-07 00:35:31,119 INFO L226 Difference]: Without dead ends: 389 [2020-11-07 00:35:31,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4694 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=7327, Invalid=12979, Unknown=0, NotChecked=0, Total=20306 [2020-11-07 00:35:31,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-11-07 00:35:31,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2020-11-07 00:35:31,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-11-07 00:35:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 403 transitions. [2020-11-07 00:35:31,150 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 403 transitions. Word has length 691 [2020-11-07 00:35:31,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:35:31,151 INFO L481 AbstractCegarLoop]: Abstraction has 389 states and 403 transitions. [2020-11-07 00:35:31,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 72 states. [2020-11-07 00:35:31,151 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 403 transitions. [2020-11-07 00:35:31,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2020-11-07 00:35:31,154 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:35:31,154 INFO L422 BasicCegarLoop]: trace histogram [68, 68, 68, 67, 67, 67, 67, 67, 67, 67, 1, 1, 1, 1, 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 00:35:31,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2020-11-07 00:35:31,155 INFO L429 AbstractCegarLoop]: === Iteration 69 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:35:31,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:35:31,155 INFO L82 PathProgramCache]: Analyzing trace with hash 424975337, now seen corresponding path program 67 times [2020-11-07 00:35:31,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:35:31,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392175020] [2020-11-07 00:35:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:35:31,158 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:35:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:31,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:35:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:31,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:35:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:31,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:31,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:32,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:32,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:32,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:32,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:33,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:33,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:33,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:33,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:34,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:34,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:34,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:34,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:34,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:35,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:35,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:35,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:35,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:35,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:35,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:36,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:36,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:36,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:36,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:36,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:36,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:37,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:37,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:37,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:37,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:37,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:37,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:38,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:38,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:38,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:38,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:38,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:38,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:38,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:39,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:39,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:39,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:39,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:39,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:39,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:39,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:39,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:39,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:40,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:40,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:40,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:40,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:40,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:40,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:40,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:40,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:41,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:41,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:41,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:41,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:41,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:41,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:41,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:41,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:42,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:42,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:50,360 INFO L134 CoverageAnalysis]: Checked inductivity of 11256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11256 trivial. 0 not checked. [2020-11-07 00:35:50,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392175020] [2020-11-07 00:35:50,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:35:50,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [73] imperfect sequences [] total 73 [2020-11-07 00:35:50,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115122001] [2020-11-07 00:35:50,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 73 states [2020-11-07 00:35:50,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:35:50,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2020-11-07 00:35:50,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2421, Invalid=2835, Unknown=0, NotChecked=0, Total=5256 [2020-11-07 00:35:50,364 INFO L87 Difference]: Start difference. First operand 389 states and 403 transitions. Second operand 73 states. [2020-11-07 00:35:58,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:35:58,126 INFO L93 Difference]: Finished difference Result 401 states and 415 transitions. [2020-11-07 00:35:58,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-11-07 00:35:58,127 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 701 [2020-11-07 00:35:58,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:35:58,130 INFO L225 Difference]: With dead ends: 401 [2020-11-07 00:35:58,130 INFO L226 Difference]: Without dead ends: 394 [2020-11-07 00:35:58,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4832 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=7538, Invalid=13342, Unknown=0, NotChecked=0, Total=20880 [2020-11-07 00:35:58,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-11-07 00:35:58,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-11-07 00:35:58,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-11-07 00:35:58,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 408 transitions. [2020-11-07 00:35:58,163 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 408 transitions. Word has length 701 [2020-11-07 00:35:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:35:58,163 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 408 transitions. [2020-11-07 00:35:58,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 73 states. [2020-11-07 00:35:58,163 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 408 transitions. [2020-11-07 00:35:58,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2020-11-07 00:35:58,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:35:58,167 INFO L422 BasicCegarLoop]: trace histogram [69, 69, 69, 68, 68, 68, 68, 68, 68, 68, 1, 1, 1, 1, 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 00:35:58,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2020-11-07 00:35:58,168 INFO L429 AbstractCegarLoop]: === Iteration 70 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:35:58,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:35:58,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1540400409, now seen corresponding path program 68 times [2020-11-07 00:35:58,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:35:58,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592509504] [2020-11-07 00:35:58,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:35:58,171 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:35:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:58,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:35:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:58,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:35:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:58,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:58,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:59,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:59,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:35:59,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:35:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:00,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:00,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:00,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:00,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:00,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:01,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:01,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:01,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:01,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:02,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:02,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:02,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:02,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:02,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:03,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:03,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:03,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:03,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:03,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:04,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:04,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:04,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:04,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:04,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:04,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:05,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:05,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:05,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:05,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:05,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:05,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:05,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:06,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:06,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:06,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:06,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:06,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:06,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:06,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:06,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:07,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:07,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:07,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:07,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:07,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:07,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:07,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:07,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:08,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:08,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:08,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:08,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:08,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:08,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:08,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:08,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:09,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:09,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:09,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:09,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:09,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:09,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:09,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:09,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:18,421 INFO L134 CoverageAnalysis]: Checked inductivity of 11594 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11594 trivial. 0 not checked. [2020-11-07 00:36:18,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592509504] [2020-11-07 00:36:18,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:36:18,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2020-11-07 00:36:18,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382891785] [2020-11-07 00:36:18,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 74 states [2020-11-07 00:36:18,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:36:18,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2020-11-07 00:36:18,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2491, Invalid=2911, Unknown=0, NotChecked=0, Total=5402 [2020-11-07 00:36:18,424 INFO L87 Difference]: Start difference. First operand 394 states and 408 transitions. Second operand 74 states. [2020-11-07 00:36:26,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:36:26,102 INFO L93 Difference]: Finished difference Result 406 states and 420 transitions. [2020-11-07 00:36:26,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-11-07 00:36:26,103 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 711 [2020-11-07 00:36:26,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:36:26,107 INFO L225 Difference]: With dead ends: 406 [2020-11-07 00:36:26,107 INFO L226 Difference]: Without dead ends: 399 [2020-11-07 00:36:26,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4972 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=7752, Invalid=13710, Unknown=0, NotChecked=0, Total=21462 [2020-11-07 00:36:26,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-11-07 00:36:26,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2020-11-07 00:36:26,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-11-07 00:36:26,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 413 transitions. [2020-11-07 00:36:26,149 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 413 transitions. Word has length 711 [2020-11-07 00:36:26,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:36:26,149 INFO L481 AbstractCegarLoop]: Abstraction has 399 states and 413 transitions. [2020-11-07 00:36:26,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 74 states. [2020-11-07 00:36:26,150 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 413 transitions. [2020-11-07 00:36:26,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2020-11-07 00:36:26,155 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:36:26,155 INFO L422 BasicCegarLoop]: trace histogram [70, 70, 70, 69, 69, 69, 69, 69, 69, 69, 1, 1, 1, 1, 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 00:36:26,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2020-11-07 00:36:26,155 INFO L429 AbstractCegarLoop]: === Iteration 71 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:36:26,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:36:26,156 INFO L82 PathProgramCache]: Analyzing trace with hash 462971305, now seen corresponding path program 69 times [2020-11-07 00:36:26,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:36:26,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840652170] [2020-11-07 00:36:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:36:26,158 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:36:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:26,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:36:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:26,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:36:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:26,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:27,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:27,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:27,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:27,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:28,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:28,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:28,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:28,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:29,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:29,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:29,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:29,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:29,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:30,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:30,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:30,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:30,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:31,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:31,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:31,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:31,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:31,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:32,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:32,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:32,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:32,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:32,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:33,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:33,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:33,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:33,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:33,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:33,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:33,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:34,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:34,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:34,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:34,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:34,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:34,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:35,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:35,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:35,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:35,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:35,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:35,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:35,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:36,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:36,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:36,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:36,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:36,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:36,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:36,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:36,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:37,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:37,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:37,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:37,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:37,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:37,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:37,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:38,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:38,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:38,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:38,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:38,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:38,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:38,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:38,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:38,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:48,887 INFO L134 CoverageAnalysis]: Checked inductivity of 11937 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11937 trivial. 0 not checked. [2020-11-07 00:36:48,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840652170] [2020-11-07 00:36:48,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:36:48,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [75] imperfect sequences [] total 75 [2020-11-07 00:36:48,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555522573] [2020-11-07 00:36:48,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 75 states [2020-11-07 00:36:48,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:36:48,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2020-11-07 00:36:48,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2562, Invalid=2988, Unknown=0, NotChecked=0, Total=5550 [2020-11-07 00:36:48,891 INFO L87 Difference]: Start difference. First operand 399 states and 413 transitions. Second operand 75 states. [2020-11-07 00:36:56,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:36:56,797 INFO L93 Difference]: Finished difference Result 411 states and 425 transitions. [2020-11-07 00:36:56,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-11-07 00:36:56,799 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 721 [2020-11-07 00:36:56,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:36:56,802 INFO L225 Difference]: With dead ends: 411 [2020-11-07 00:36:56,802 INFO L226 Difference]: Without dead ends: 404 [2020-11-07 00:36:56,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5114 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=7969, Invalid=14083, Unknown=0, NotChecked=0, Total=22052 [2020-11-07 00:36:56,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-11-07 00:36:56,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2020-11-07 00:36:56,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-11-07 00:36:56,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 418 transitions. [2020-11-07 00:36:56,836 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 418 transitions. Word has length 721 [2020-11-07 00:36:56,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:36:56,837 INFO L481 AbstractCegarLoop]: Abstraction has 404 states and 418 transitions. [2020-11-07 00:36:56,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 75 states. [2020-11-07 00:36:56,837 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 418 transitions. [2020-11-07 00:36:56,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2020-11-07 00:36:56,843 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:36:56,843 INFO L422 BasicCegarLoop]: trace histogram [71, 71, 71, 70, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 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 00:36:56,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2020-11-07 00:36:56,843 INFO L429 AbstractCegarLoop]: === Iteration 72 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:36:56,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:36:56,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1749850919, now seen corresponding path program 70 times [2020-11-07 00:36:56,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:36:56,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858664067] [2020-11-07 00:36:56,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:36:56,848 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:36:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:57,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:36:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:57,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:36:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:57,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:57,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:58,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:58,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:58,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:59,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:59,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:59,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:36:59,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:36:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:00,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:00,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:00,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:00,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:01,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:01,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:01,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:01,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:02,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:02,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:02,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:02,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:02,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:02,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:03,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:03,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:03,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:03,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:03,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:03,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:04,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:04,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:04,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:04,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:04,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:05,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:05,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:05,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:05,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:05,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:05,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:05,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:05,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:06,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:06,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:06,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:06,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:06,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:06,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:06,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:07,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:07,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:07,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:07,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:07,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:07,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:07,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:07,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:08,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:08,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:08,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:08,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:08,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:08,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:08,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:08,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:09,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:09,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:09,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:09,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:09,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:09,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:18,897 INFO L134 CoverageAnalysis]: Checked inductivity of 12285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12285 trivial. 0 not checked. [2020-11-07 00:37:18,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858664067] [2020-11-07 00:37:18,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:37:18,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2020-11-07 00:37:18,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585177671] [2020-11-07 00:37:18,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 76 states [2020-11-07 00:37:18,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:37:18,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2020-11-07 00:37:18,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2634, Invalid=3066, Unknown=0, NotChecked=0, Total=5700 [2020-11-07 00:37:18,900 INFO L87 Difference]: Start difference. First operand 404 states and 418 transitions. Second operand 76 states. [2020-11-07 00:37:27,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:37:27,131 INFO L93 Difference]: Finished difference Result 416 states and 430 transitions. [2020-11-07 00:37:27,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-11-07 00:37:27,132 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 731 [2020-11-07 00:37:27,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:37:27,136 INFO L225 Difference]: With dead ends: 416 [2020-11-07 00:37:27,136 INFO L226 Difference]: Without dead ends: 409 [2020-11-07 00:37:27,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5258 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=8189, Invalid=14461, Unknown=0, NotChecked=0, Total=22650 [2020-11-07 00:37:27,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2020-11-07 00:37:27,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2020-11-07 00:37:27,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-11-07 00:37:27,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 423 transitions. [2020-11-07 00:37:27,176 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 423 transitions. Word has length 731 [2020-11-07 00:37:27,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:37:27,177 INFO L481 AbstractCegarLoop]: Abstraction has 409 states and 423 transitions. [2020-11-07 00:37:27,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 76 states. [2020-11-07 00:37:27,177 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 423 transitions. [2020-11-07 00:37:27,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 742 [2020-11-07 00:37:27,183 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:37:27,184 INFO L422 BasicCegarLoop]: trace histogram [72, 72, 72, 71, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 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 00:37:27,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2020-11-07 00:37:27,184 INFO L429 AbstractCegarLoop]: === Iteration 73 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:37:27,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:37:27,185 INFO L82 PathProgramCache]: Analyzing trace with hash 842217321, now seen corresponding path program 71 times [2020-11-07 00:37:27,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:37:27,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201944482] [2020-11-07 00:37:27,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:37:27,189 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:37:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:27,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:37:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:27,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:37:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:27,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:28,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:28,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:28,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:28,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:29,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:29,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:29,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:29,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:30,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:30,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:30,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:30,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:31,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:31,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:31,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:31,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:32,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:32,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:32,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:32,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:32,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:33,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:33,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:33,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:33,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:33,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:34,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:34,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:34,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:34,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:34,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:34,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:34,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:35,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:35,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:35,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:35,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:35,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:35,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:36,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:36,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:36,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:36,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:36,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:36,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:36,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:37,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:37,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:37,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:37,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:37,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:37,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:37,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:38,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:38,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:38,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:38,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:38,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:38,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:38,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:38,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:39,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:39,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:39,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:39,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:39,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:39,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:39,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:39,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:40,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 12638 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12638 trivial. 0 not checked. [2020-11-07 00:37:49,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201944482] [2020-11-07 00:37:49,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:37:49,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [77] imperfect sequences [] total 77 [2020-11-07 00:37:49,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389157338] [2020-11-07 00:37:49,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 77 states [2020-11-07 00:37:49,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:37:49,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2020-11-07 00:37:49,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2707, Invalid=3145, Unknown=0, NotChecked=0, Total=5852 [2020-11-07 00:37:49,663 INFO L87 Difference]: Start difference. First operand 409 states and 423 transitions. Second operand 77 states. [2020-11-07 00:37:58,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:37:58,170 INFO L93 Difference]: Finished difference Result 421 states and 435 transitions. [2020-11-07 00:37:58,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-11-07 00:37:58,171 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 741 [2020-11-07 00:37:58,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:37:58,173 INFO L225 Difference]: With dead ends: 421 [2020-11-07 00:37:58,173 INFO L226 Difference]: Without dead ends: 414 [2020-11-07 00:37:58,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5404 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=8412, Invalid=14844, Unknown=0, NotChecked=0, Total=23256 [2020-11-07 00:37:58,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2020-11-07 00:37:58,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2020-11-07 00:37:58,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2020-11-07 00:37:58,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 428 transitions. [2020-11-07 00:37:58,210 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 428 transitions. Word has length 741 [2020-11-07 00:37:58,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:37:58,211 INFO L481 AbstractCegarLoop]: Abstraction has 414 states and 428 transitions. [2020-11-07 00:37:58,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 77 states. [2020-11-07 00:37:58,211 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 428 transitions. [2020-11-07 00:37:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2020-11-07 00:37:58,218 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:37:58,218 INFO L422 BasicCegarLoop]: trace histogram [73, 73, 73, 72, 72, 72, 72, 72, 72, 72, 1, 1, 1, 1, 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 00:37:58,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2020-11-07 00:37:58,218 INFO L429 AbstractCegarLoop]: === Iteration 74 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:37:58,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:37:58,219 INFO L82 PathProgramCache]: Analyzing trace with hash 2046413671, now seen corresponding path program 72 times [2020-11-07 00:37:58,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:37:58,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372117430] [2020-11-07 00:37:58,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:37:58,222 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:37:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:58,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:37:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:58,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-07 00:37:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:58,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:59,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:59,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:37:59,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:37:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:00,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:00,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:00,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:00,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:01,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:01,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:01,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:01,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:02,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:02,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:02,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:02,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:03,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:03,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:03,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:03,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:03,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:04,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:04,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:04,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:04,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:04,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:05,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:05,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:05,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:05,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:05,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:05,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:06,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:06,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:06,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:06,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:06,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:06,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:06,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:07,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:07,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:07,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:07,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:07,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:07,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:08,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:08,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:08,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:08,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:08,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:08,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:08,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:09,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:09,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:09,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:09,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:09,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:09,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:09,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:09,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:10,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:10,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:10,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:10,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:10,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:10,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:10,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:10,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:11,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:11,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:11,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:11,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-07 00:38:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:38:21,584 INFO L134 CoverageAnalysis]: Checked inductivity of 12996 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12996 trivial. 0 not checked. [2020-11-07 00:38:21,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372117430] [2020-11-07 00:38:21,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:38:21,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2020-11-07 00:38:21,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290056628] [2020-11-07 00:38:21,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 78 states [2020-11-07 00:38:21,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:38:21,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2020-11-07 00:38:21,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2781, Invalid=3225, Unknown=0, NotChecked=0, Total=6006 [2020-11-07 00:38:21,589 INFO L87 Difference]: Start difference. First operand 414 states and 428 transitions. Second operand 78 states.