/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Addition03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:02:02,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:02:02,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:02:02,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:02:02,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:02:02,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:02:02,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:02:02,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:02:02,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:02:02,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:02:02,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:02:02,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:02:02,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:02:02,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:02:02,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:02:02,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:02:02,705 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:02:02,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:02:02,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:02:02,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:02:02,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:02:02,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:02:02,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:02:02,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:02:02,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 13:02:02,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 13:02:02,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 13:02:02,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 13:02:02,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 13:02:02,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 13:02:02,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 13:02:02,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 13:02:02,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 13:02:02,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 13:02:02,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 13:02:02,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 13:02:02,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 13:02:02,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 13:02:02,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:02:02,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:02:02,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:02:02,728 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 13:02:02,754 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:02:02,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:02:02,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:02:02,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:02:02,756 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:02:02,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:02:02,757 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:02:02,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:02:02,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:02:02,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:02:02,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:02:02,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:02:02,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:02:02,758 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:02:02,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:02:02,758 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:02:02,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:02:02,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:02:02,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:02:02,759 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:02:02,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:02:02,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:02:02,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:02:02,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:02:02,760 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:02:02,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:02:02,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:02:02,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:02:02,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:02:02,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:02:03,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:02:03,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:02:03,227 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:02:03,229 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:02:03,229 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:02:03,231 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-04 13:02:03,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbc2745ae/077dfe2e6b6147da871a7d2d1ec1d1e1/FLAG203ef646f [2020-09-04 13:02:03,835 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:02:03,836 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Addition03-1.c [2020-09-04 13:02:03,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbc2745ae/077dfe2e6b6147da871a7d2d1ec1d1e1/FLAG203ef646f [2020-09-04 13:02:04,172 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cbc2745ae/077dfe2e6b6147da871a7d2d1ec1d1e1 [2020-09-04 13:02:04,185 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:02:04,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:02:04,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:02:04,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:02:04,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:02:04,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:02:04" (1/1) ... [2020-09-04 13:02:04,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66145f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:02:04, skipping insertion in model container [2020-09-04 13:02:04,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:02:04" (1/1) ... [2020-09-04 13:02:04,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:02:04,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:02:04,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:02:04,446 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:02:04,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:02:04,484 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:02:04,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:02:04 WrapperNode [2020-09-04 13:02:04,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:02:04,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:02:04,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:02:04,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:02:04,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:02:04" (1/1) ... [2020-09-04 13:02:04,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:02:04" (1/1) ... [2020-09-04 13:02:04,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:02:04" (1/1) ... [2020-09-04 13:02:04,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:02:04" (1/1) ... [2020-09-04 13:02:04,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:02:04" (1/1) ... [2020-09-04 13:02:04,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:02:04" (1/1) ... [2020-09-04 13:02:04,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:02:04" (1/1) ... [2020-09-04 13:02:04,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:02:04,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:02:04,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:02:04,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:02:04,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:02:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:02:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:02:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:02:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-09-04 13:02:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:02:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:02:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:02:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-09-04 13:02:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:02:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:02:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:02:04,862 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:02:04,862 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 13:02:04,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:02:04 BoogieIcfgContainer [2020-09-04 13:02:04,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:02:04,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:02:04,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:02:04,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:02:04,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:02:04" (1/3) ... [2020-09-04 13:02:04,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d71a76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:02:04, skipping insertion in model container [2020-09-04 13:02:04,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:02:04" (2/3) ... [2020-09-04 13:02:04,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d71a76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:02:04, skipping insertion in model container [2020-09-04 13:02:04,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:02:04" (3/3) ... [2020-09-04 13:02:04,877 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2020-09-04 13:02:04,889 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:02:04,900 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:02:04,944 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:02:04,982 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:02:04,983 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:02:04,983 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:02:04,983 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:02:04,983 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:02:04,984 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:02:04,984 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:02:04,984 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:02:05,006 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-04 13:02:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-04 13:02:05,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:05,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:05,014 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:05,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:05,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1540493149, now seen corresponding path program 1 times [2020-09-04 13:02:05,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:05,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635944498] [2020-09-04 13:02:05,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:05,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:05,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:02:05,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635944498] [2020-09-04 13:02:05,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:02:05,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 13:02:05,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530810451] [2020-09-04 13:02:05,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:02:05,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:05,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:02:05,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:02:05,320 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-04 13:02:05,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:05,448 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2020-09-04 13:02:05,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 13:02:05,450 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-04 13:02:05,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:05,463 INFO L225 Difference]: With dead ends: 36 [2020-09-04 13:02:05,463 INFO L226 Difference]: Without dead ends: 22 [2020-09-04 13:02:05,468 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:02:05,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-04 13:02:05,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-04 13:02:05,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-04 13:02:05,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-09-04 13:02:05,521 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 13 [2020-09-04 13:02:05,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:05,521 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-09-04 13:02:05,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:02:05,522 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-09-04 13:02:05,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-04 13:02:05,524 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:05,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:05,525 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:02:05,525 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:05,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:05,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1700112874, now seen corresponding path program 1 times [2020-09-04 13:02:05,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:05,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249162824] [2020-09-04 13:02:05,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:05,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:05,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:05,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:02:05,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249162824] [2020-09-04 13:02:05,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:02:05,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 13:02:05,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382636265] [2020-09-04 13:02:05,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 13:02:05,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:05,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 13:02:05,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-04 13:02:05,593 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 4 states. [2020-09-04 13:02:05,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:05,622 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2020-09-04 13:02:05,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-04 13:02:05,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-04 13:02:05,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:05,624 INFO L225 Difference]: With dead ends: 32 [2020-09-04 13:02:05,624 INFO L226 Difference]: Without dead ends: 24 [2020-09-04 13:02:05,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-04 13:02:05,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-09-04 13:02:05,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2020-09-04 13:02:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-04 13:02:05,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-09-04 13:02:05,634 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2020-09-04 13:02:05,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:05,634 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-09-04 13:02:05,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 13:02:05,635 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-09-04 13:02:05,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-04 13:02:05,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:05,636 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:05,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 13:02:05,637 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:05,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:05,638 INFO L82 PathProgramCache]: Analyzing trace with hash -35294164, now seen corresponding path program 1 times [2020-09-04 13:02:05,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:05,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173787159] [2020-09-04 13:02:05,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:05,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:05,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:05,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:05,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-04 13:02:05,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173787159] [2020-09-04 13:02:05,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922048127] [2020-09-04 13:02:05,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:05,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-04 13:02:05,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:05,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-04 13:02:05,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:05,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-09-04 13:02:05,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027074723] [2020-09-04 13:02:05,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 13:02:05,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:05,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 13:02:05,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:02:05,953 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 8 states. [2020-09-04 13:02:06,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:06,096 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2020-09-04 13:02:06,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:02:06,097 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2020-09-04 13:02:06,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:06,099 INFO L225 Difference]: With dead ends: 52 [2020-09-04 13:02:06,099 INFO L226 Difference]: Without dead ends: 34 [2020-09-04 13:02:06,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:02:06,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-04 13:02:06,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-09-04 13:02:06,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-04 13:02:06,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2020-09-04 13:02:06,110 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 20 [2020-09-04 13:02:06,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:06,110 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2020-09-04 13:02:06,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 13:02:06,111 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-09-04 13:02:06,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-04 13:02:06,113 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:06,113 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:06,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-09-04 13:02:06,328 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:06,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:06,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1261456781, now seen corresponding path program 2 times [2020-09-04 13:02:06,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:06,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560997414] [2020-09-04 13:02:06,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:06,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:06,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:06,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:06,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-04 13:02:06,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560997414] [2020-09-04 13:02:06,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833486608] [2020-09-04 13:02:06,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:06,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:02:06,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:06,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-04 13:02:06,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-04 13:02:06,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:06,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-04 13:02:06,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917643183] [2020-09-04 13:02:06,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 13:02:06,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:06,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 13:02:06,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-04 13:02:06,623 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand 9 states. [2020-09-04 13:02:06,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:06,764 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2020-09-04 13:02:06,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 13:02:06,764 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-09-04 13:02:06,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:06,767 INFO L225 Difference]: With dead ends: 41 [2020-09-04 13:02:06,767 INFO L226 Difference]: Without dead ends: 37 [2020-09-04 13:02:06,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:02:06,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-04 13:02:06,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-09-04 13:02:06,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-09-04 13:02:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2020-09-04 13:02:06,776 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 27 [2020-09-04 13:02:06,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:06,777 INFO L479 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2020-09-04 13:02:06,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 13:02:06,777 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2020-09-04 13:02:06,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-04 13:02:06,778 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:06,778 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:06,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:06,981 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:06,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:06,983 INFO L82 PathProgramCache]: Analyzing trace with hash 2131329174, now seen corresponding path program 3 times [2020-09-04 13:02:06,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:06,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784775969] [2020-09-04 13:02:06,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,134 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-04 13:02:07,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784775969] [2020-09-04 13:02:07,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158818797] [2020-09-04 13:02:07,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:07,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2020-09-04 13:02:07,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:07,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-04 13:02:07,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-04 13:02:07,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:07,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2020-09-04 13:02:07,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074249320] [2020-09-04 13:02:07,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 13:02:07,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:07,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 13:02:07,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:02:07,244 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand 10 states. [2020-09-04 13:02:07,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:07,396 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-04 13:02:07,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 13:02:07,397 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2020-09-04 13:02:07,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:07,399 INFO L225 Difference]: With dead ends: 44 [2020-09-04 13:02:07,399 INFO L226 Difference]: Without dead ends: 40 [2020-09-04 13:02:07,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-04 13:02:07,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-04 13:02:07,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2020-09-04 13:02:07,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-04 13:02:07,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2020-09-04 13:02:07,410 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 34 [2020-09-04 13:02:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:07,410 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2020-09-04 13:02:07,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 13:02:07,411 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2020-09-04 13:02:07,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-04 13:02:07,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:07,413 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:07,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:07,629 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:07,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:07,629 INFO L82 PathProgramCache]: Analyzing trace with hash -867295607, now seen corresponding path program 4 times [2020-09-04 13:02:07,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:07,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019320912] [2020-09-04 13:02:07,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:07,807 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-04 13:02:07,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019320912] [2020-09-04 13:02:07,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952225310] [2020-09-04 13:02:07,808 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:07,851 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:02:07,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:07,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjunts are in the unsatisfiable core [2020-09-04 13:02:07,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-04 13:02:07,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:07,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-09-04 13:02:07,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792048185] [2020-09-04 13:02:07,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 13:02:07,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:07,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 13:02:07,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:02:07,930 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 11 states. [2020-09-04 13:02:08,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:08,081 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2020-09-04 13:02:08,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 13:02:08,081 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 41 [2020-09-04 13:02:08,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:08,083 INFO L225 Difference]: With dead ends: 47 [2020-09-04 13:02:08,083 INFO L226 Difference]: Without dead ends: 43 [2020-09-04 13:02:08,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-04 13:02:08,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-04 13:02:08,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2020-09-04 13:02:08,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-04 13:02:08,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-09-04 13:02:08,092 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 41 [2020-09-04 13:02:08,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:08,093 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-09-04 13:02:08,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 13:02:08,093 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-09-04 13:02:08,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-04 13:02:08,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:08,095 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:08,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:08,309 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:08,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:08,309 INFO L82 PathProgramCache]: Analyzing trace with hash -943688704, now seen corresponding path program 5 times [2020-09-04 13:02:08,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:08,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964626551] [2020-09-04 13:02:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:08,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:08,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:08,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:08,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:08,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:08,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:08,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-09-04 13:02:08,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964626551] [2020-09-04 13:02:08,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270094431] [2020-09-04 13:02:08,506 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:08,553 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-09-04 13:02:08,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:08,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 14 conjunts are in the unsatisfiable core [2020-09-04 13:02:08,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-09-04 13:02:08,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:08,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2020-09-04 13:02:08,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791106011] [2020-09-04 13:02:08,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-04 13:02:08,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:08,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-04 13:02:08,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-09-04 13:02:08,628 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 12 states. [2020-09-04 13:02:08,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:08,835 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2020-09-04 13:02:08,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-04 13:02:08,836 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2020-09-04 13:02:08,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:08,841 INFO L225 Difference]: With dead ends: 50 [2020-09-04 13:02:08,841 INFO L226 Difference]: Without dead ends: 46 [2020-09-04 13:02:08,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2020-09-04 13:02:08,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-04 13:02:08,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-09-04 13:02:08,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-04 13:02:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2020-09-04 13:02:08,859 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 48 [2020-09-04 13:02:08,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:08,859 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2020-09-04 13:02:08,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-04 13:02:08,863 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2020-09-04 13:02:08,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-09-04 13:02:08,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:08,865 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:09,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-09-04 13:02:09,083 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:09,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:09,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1959654303, now seen corresponding path program 6 times [2020-09-04 13:02:09,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:09,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368110097] [2020-09-04 13:02:09,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:09,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:09,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:09,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:09,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:09,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:09,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:09,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:09,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:09,353 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-09-04 13:02:09,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368110097] [2020-09-04 13:02:09,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774321621] [2020-09-04 13:02:09,355 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:09,408 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2020-09-04 13:02:09,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:09,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 16 conjunts are in the unsatisfiable core [2020-09-04 13:02:09,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:09,483 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-09-04 13:02:09,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:09,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2020-09-04 13:02:09,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006730416] [2020-09-04 13:02:09,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-04 13:02:09,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:09,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-04 13:02:09,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:02:09,486 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand 13 states. [2020-09-04 13:02:09,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:09,671 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2020-09-04 13:02:09,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 13:02:09,672 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 55 [2020-09-04 13:02:09,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:09,673 INFO L225 Difference]: With dead ends: 53 [2020-09-04 13:02:09,673 INFO L226 Difference]: Without dead ends: 49 [2020-09-04 13:02:09,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-04 13:02:09,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-04 13:02:09,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2020-09-04 13:02:09,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-04 13:02:09,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2020-09-04 13:02:09,682 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 55 [2020-09-04 13:02:09,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:09,682 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2020-09-04 13:02:09,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-04 13:02:09,683 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2020-09-04 13:02:09,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-09-04 13:02:09,684 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:09,684 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:09,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:09,898 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:09,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:09,899 INFO L82 PathProgramCache]: Analyzing trace with hash 75083370, now seen corresponding path program 7 times [2020-09-04 13:02:09,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:09,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752904996] [2020-09-04 13:02:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:09,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:09,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:09,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,187 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-09-04 13:02:10,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752904996] [2020-09-04 13:02:10,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341366252] [2020-09-04 13:02:10,188 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 18 conjunts are in the unsatisfiable core [2020-09-04 13:02:10,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:10,290 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-09-04 13:02:10,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:10,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2020-09-04 13:02:10,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670550376] [2020-09-04 13:02:10,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 13:02:10,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:10,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 13:02:10,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-09-04 13:02:10,293 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 14 states. [2020-09-04 13:02:10,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:10,474 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2020-09-04 13:02:10,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 13:02:10,475 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 62 [2020-09-04 13:02:10,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:10,476 INFO L225 Difference]: With dead ends: 56 [2020-09-04 13:02:10,476 INFO L226 Difference]: Without dead ends: 52 [2020-09-04 13:02:10,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2020-09-04 13:02:10,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-04 13:02:10,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-04 13:02:10,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-04 13:02:10,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2020-09-04 13:02:10,485 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 62 [2020-09-04 13:02:10,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:10,485 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2020-09-04 13:02:10,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 13:02:10,485 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2020-09-04 13:02:10,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-04 13:02:10,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:10,487 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:10,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:10,702 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:10,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:10,703 INFO L82 PathProgramCache]: Analyzing trace with hash 980406709, now seen corresponding path program 8 times [2020-09-04 13:02:10,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:10,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538746387] [2020-09-04 13:02:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:10,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,029 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-09-04 13:02:11,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538746387] [2020-09-04 13:02:11,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294792763] [2020-09-04 13:02:11,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:11,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:02:11,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:11,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 20 conjunts are in the unsatisfiable core [2020-09-04 13:02:11,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:11,149 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-09-04 13:02:11,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:11,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2020-09-04 13:02:11,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387407144] [2020-09-04 13:02:11,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 13:02:11,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:11,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 13:02:11,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-04 13:02:11,152 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand 15 states. [2020-09-04 13:02:11,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:11,379 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-09-04 13:02:11,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 13:02:11,380 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 69 [2020-09-04 13:02:11,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:11,381 INFO L225 Difference]: With dead ends: 59 [2020-09-04 13:02:11,382 INFO L226 Difference]: Without dead ends: 55 [2020-09-04 13:02:11,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-04 13:02:11,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-04 13:02:11,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-09-04 13:02:11,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-04 13:02:11,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2020-09-04 13:02:11,390 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 69 [2020-09-04 13:02:11,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:11,390 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2020-09-04 13:02:11,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 13:02:11,390 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2020-09-04 13:02:11,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-09-04 13:02:11,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:11,392 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:11,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-09-04 13:02:11,607 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:11,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:11,608 INFO L82 PathProgramCache]: Analyzing trace with hash -654012460, now seen corresponding path program 9 times [2020-09-04 13:02:11,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:11,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973236298] [2020-09-04 13:02:11,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-09-04 13:02:11,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973236298] [2020-09-04 13:02:11,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056708124] [2020-09-04 13:02:11,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:12,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2020-09-04 13:02:12,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:12,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 22 conjunts are in the unsatisfiable core [2020-09-04 13:02:12,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-09-04 13:02:12,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:12,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 16 [2020-09-04 13:02:12,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836216158] [2020-09-04 13:02:12,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-04 13:02:12,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:12,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-04 13:02:12,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-04 13:02:12,109 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand 16 states. [2020-09-04 13:02:12,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:12,311 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2020-09-04 13:02:12,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-04 13:02:12,312 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 76 [2020-09-04 13:02:12,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:12,313 INFO L225 Difference]: With dead ends: 62 [2020-09-04 13:02:12,313 INFO L226 Difference]: Without dead ends: 58 [2020-09-04 13:02:12,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-04 13:02:12,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-04 13:02:12,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-09-04 13:02:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-04 13:02:12,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2020-09-04 13:02:12,321 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 76 [2020-09-04 13:02:12,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:12,322 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-09-04 13:02:12,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-04 13:02:12,322 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2020-09-04 13:02:12,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-04 13:02:12,323 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:12,323 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:12,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:12,538 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:12,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:12,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1057728309, now seen corresponding path program 10 times [2020-09-04 13:02:12,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:12,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694015150] [2020-09-04 13:02:12,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:12,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:12,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:12,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:12,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:12,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:12,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:12,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:12,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:12,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:12,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:12,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:12,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-09-04 13:02:13,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694015150] [2020-09-04 13:02:13,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64187407] [2020-09-04 13:02:13,059 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:13,114 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:02:13,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:13,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 24 conjunts are in the unsatisfiable core [2020-09-04 13:02:13,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:13,202 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-09-04 13:02:13,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:13,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 17 [2020-09-04 13:02:13,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214262283] [2020-09-04 13:02:13,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-04 13:02:13,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:13,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-04 13:02:13,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-04 13:02:13,206 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand 17 states. [2020-09-04 13:02:13,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:13,425 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2020-09-04 13:02:13,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-04 13:02:13,426 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 83 [2020-09-04 13:02:13,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:13,427 INFO L225 Difference]: With dead ends: 65 [2020-09-04 13:02:13,427 INFO L226 Difference]: Without dead ends: 61 [2020-09-04 13:02:13,428 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-04 13:02:13,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-04 13:02:13,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-09-04 13:02:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-04 13:02:13,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2020-09-04 13:02:13,435 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 83 [2020-09-04 13:02:13,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:13,435 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2020-09-04 13:02:13,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-04 13:02:13,436 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2020-09-04 13:02:13,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-09-04 13:02:13,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:13,437 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:13,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:13,651 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:13,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:13,651 INFO L82 PathProgramCache]: Analyzing trace with hash -2104461250, now seen corresponding path program 11 times [2020-09-04 13:02:13,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:13,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287759378] [2020-09-04 13:02:13,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:13,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:13,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:13,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:13,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:13,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:13,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:13,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:13,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:14,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:14,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:14,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:14,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:14,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:14,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-09-04 13:02:14,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287759378] [2020-09-04 13:02:14,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071676090] [2020-09-04 13:02:14,189 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:14,245 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2020-09-04 13:02:14,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:14,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 26 conjunts are in the unsatisfiable core [2020-09-04 13:02:14,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:14,318 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-09-04 13:02:14,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:14,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 18 [2020-09-04 13:02:14,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676501438] [2020-09-04 13:02:14,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-04 13:02:14,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:14,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-04 13:02:14,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-04 13:02:14,320 INFO L87 Difference]: Start difference. First operand 59 states and 67 transitions. Second operand 18 states. [2020-09-04 13:02:14,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:14,578 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2020-09-04 13:02:14,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 13:02:14,578 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 90 [2020-09-04 13:02:14,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:14,580 INFO L225 Difference]: With dead ends: 68 [2020-09-04 13:02:14,580 INFO L226 Difference]: Without dead ends: 64 [2020-09-04 13:02:14,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-04 13:02:14,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-04 13:02:14,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2020-09-04 13:02:14,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-04 13:02:14,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2020-09-04 13:02:14,598 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 90 [2020-09-04 13:02:14,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:14,598 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2020-09-04 13:02:14,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-04 13:02:14,598 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2020-09-04 13:02:14,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-09-04 13:02:14,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:14,599 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:14,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-09-04 13:02:14,814 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:14,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:14,815 INFO L82 PathProgramCache]: Analyzing trace with hash 565979361, now seen corresponding path program 12 times [2020-09-04 13:02:14,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:14,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200199940] [2020-09-04 13:02:14,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:14,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:14,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:14,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:14,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:15,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:15,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:15,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:15,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:15,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:15,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:15,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:15,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:15,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:15,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:15,408 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2020-09-04 13:02:15,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200199940] [2020-09-04 13:02:15,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000770508] [2020-09-04 13:02:15,409 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:15,471 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2020-09-04 13:02:15,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:15,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 28 conjunts are in the unsatisfiable core [2020-09-04 13:02:15,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:15,566 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2020-09-04 13:02:15,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:15,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 19 [2020-09-04 13:02:15,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991682353] [2020-09-04 13:02:15,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-04 13:02:15,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:15,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-04 13:02:15,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2020-09-04 13:02:15,569 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 19 states. [2020-09-04 13:02:15,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:15,822 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2020-09-04 13:02:15,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-04 13:02:15,823 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 97 [2020-09-04 13:02:15,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:15,824 INFO L225 Difference]: With dead ends: 71 [2020-09-04 13:02:15,824 INFO L226 Difference]: Without dead ends: 67 [2020-09-04 13:02:15,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=379, Invalid=677, Unknown=0, NotChecked=0, Total=1056 [2020-09-04 13:02:15,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-04 13:02:15,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2020-09-04 13:02:15,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-04 13:02:15,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2020-09-04 13:02:15,830 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 97 [2020-09-04 13:02:15,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:15,831 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2020-09-04 13:02:15,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-04 13:02:15,831 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2020-09-04 13:02:15,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-04 13:02:15,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:15,832 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:16,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-09-04 13:02:16,044 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:16,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:16,045 INFO L82 PathProgramCache]: Analyzing trace with hash -106117208, now seen corresponding path program 13 times [2020-09-04 13:02:16,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:16,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645270668] [2020-09-04 13:02:16,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,776 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2020-09-04 13:02:16,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645270668] [2020-09-04 13:02:16,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534759990] [2020-09-04 13:02:16,778 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:16,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 30 conjunts are in the unsatisfiable core [2020-09-04 13:02:16,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:16,955 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2020-09-04 13:02:16,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:16,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 20 [2020-09-04 13:02:16,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917137425] [2020-09-04 13:02:16,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-04 13:02:16,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:16,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-04 13:02:16,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2020-09-04 13:02:16,958 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand 20 states. [2020-09-04 13:02:17,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:17,296 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2020-09-04 13:02:17,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-04 13:02:17,296 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 104 [2020-09-04 13:02:17,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:17,297 INFO L225 Difference]: With dead ends: 74 [2020-09-04 13:02:17,298 INFO L226 Difference]: Without dead ends: 70 [2020-09-04 13:02:17,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=428, Invalid=762, Unknown=0, NotChecked=0, Total=1190 [2020-09-04 13:02:17,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-04 13:02:17,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2020-09-04 13:02:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-04 13:02:17,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2020-09-04 13:02:17,310 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 104 [2020-09-04 13:02:17,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:17,311 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2020-09-04 13:02:17,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-04 13:02:17,311 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2020-09-04 13:02:17,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-04 13:02:17,312 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:17,312 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:17,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-09-04 13:02:17,513 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:17,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:17,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1237836279, now seen corresponding path program 14 times [2020-09-04 13:02:17,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:17,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914825324] [2020-09-04 13:02:17,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:17,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:17,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:17,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:17,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:17,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:17,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:17,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:17,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:17,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:17,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:18,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:18,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:18,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:18,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:18,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:18,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:18,235 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-09-04 13:02:18,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914825324] [2020-09-04 13:02:18,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752116706] [2020-09-04 13:02:18,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:18,305 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:02:18,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:18,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 32 conjunts are in the unsatisfiable core [2020-09-04 13:02:18,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:18,395 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-09-04 13:02:18,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:18,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2020-09-04 13:02:18,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717116131] [2020-09-04 13:02:18,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-04 13:02:18,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:18,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-04 13:02:18,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=260, Unknown=0, NotChecked=0, Total=420 [2020-09-04 13:02:18,397 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand 21 states. [2020-09-04 13:02:18,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:18,682 INFO L93 Difference]: Finished difference Result 77 states and 87 transitions. [2020-09-04 13:02:18,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-04 13:02:18,682 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 111 [2020-09-04 13:02:18,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:18,684 INFO L225 Difference]: With dead ends: 77 [2020-09-04 13:02:18,684 INFO L226 Difference]: Without dead ends: 73 [2020-09-04 13:02:18,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=480, Invalid=852, Unknown=0, NotChecked=0, Total=1332 [2020-09-04 13:02:18,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-04 13:02:18,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2020-09-04 13:02:18,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-09-04 13:02:18,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2020-09-04 13:02:18,690 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 111 [2020-09-04 13:02:18,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:18,690 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2020-09-04 13:02:18,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-04 13:02:18,690 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2020-09-04 13:02:18,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-09-04 13:02:18,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:18,692 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:18,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:18,905 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:18,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:18,905 INFO L82 PathProgramCache]: Analyzing trace with hash 340319762, now seen corresponding path program 15 times [2020-09-04 13:02:18,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:18,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718611431] [2020-09-04 13:02:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:18,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:18,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:19,738 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2020-09-04 13:02:19,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718611431] [2020-09-04 13:02:19,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192323050] [2020-09-04 13:02:19,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:19,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2020-09-04 13:02:19,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:19,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 34 conjunts are in the unsatisfiable core [2020-09-04 13:02:19,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:19,894 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2020-09-04 13:02:19,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:19,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 22 [2020-09-04 13:02:19,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901275936] [2020-09-04 13:02:19,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-04 13:02:19,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:19,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-04 13:02:19,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=284, Unknown=0, NotChecked=0, Total=462 [2020-09-04 13:02:19,896 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand 22 states. [2020-09-04 13:02:20,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:20,245 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2020-09-04 13:02:20,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-04 13:02:20,245 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 118 [2020-09-04 13:02:20,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:20,246 INFO L225 Difference]: With dead ends: 80 [2020-09-04 13:02:20,246 INFO L226 Difference]: Without dead ends: 76 [2020-09-04 13:02:20,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=535, Invalid=947, Unknown=0, NotChecked=0, Total=1482 [2020-09-04 13:02:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-09-04 13:02:20,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2020-09-04 13:02:20,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-04 13:02:20,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 82 transitions. [2020-09-04 13:02:20,252 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 82 transitions. Word has length 118 [2020-09-04 13:02:20,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:20,253 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 82 transitions. [2020-09-04 13:02:20,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-04 13:02:20,253 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 82 transitions. [2020-09-04 13:02:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-04 13:02:20,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:20,254 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:20,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-09-04 13:02:20,466 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:20,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:20,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1471685645, now seen corresponding path program 16 times [2020-09-04 13:02:20,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:20,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66456950] [2020-09-04 13:02:20,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:20,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:20,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:20,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:20,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:20,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:20,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:20,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:20,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:20,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:20,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:20,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:20,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:21,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:21,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:21,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:21,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:21,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:21,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:21,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2020-09-04 13:02:21,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66456950] [2020-09-04 13:02:21,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318504759] [2020-09-04 13:02:21,335 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:21,404 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:02:21,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:21,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 36 conjunts are in the unsatisfiable core [2020-09-04 13:02:21,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:21,517 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2020-09-04 13:02:21,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:21,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 23 [2020-09-04 13:02:21,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237195380] [2020-09-04 13:02:21,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-04 13:02:21,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:21,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-04 13:02:21,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=309, Unknown=0, NotChecked=0, Total=506 [2020-09-04 13:02:21,520 INFO L87 Difference]: Start difference. First operand 74 states and 82 transitions. Second operand 23 states. [2020-09-04 13:02:21,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:21,912 INFO L93 Difference]: Finished difference Result 83 states and 93 transitions. [2020-09-04 13:02:21,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-04 13:02:21,913 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 125 [2020-09-04 13:02:21,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:21,914 INFO L225 Difference]: With dead ends: 83 [2020-09-04 13:02:21,915 INFO L226 Difference]: Without dead ends: 79 [2020-09-04 13:02:21,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=593, Invalid=1047, Unknown=0, NotChecked=0, Total=1640 [2020-09-04 13:02:21,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-04 13:02:21,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2020-09-04 13:02:21,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-09-04 13:02:21,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2020-09-04 13:02:21,921 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 125 [2020-09-04 13:02:21,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:21,921 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2020-09-04 13:02:21,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-04 13:02:21,922 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2020-09-04 13:02:21,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-09-04 13:02:21,923 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:21,923 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:22,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-09-04 13:02:22,129 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:22,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:22,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1481368708, now seen corresponding path program 17 times [2020-09-04 13:02:22,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:22,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788430197] [2020-09-04 13:02:22,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:22,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2020-09-04 13:02:23,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788430197] [2020-09-04 13:02:23,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310750930] [2020-09-04 13:02:23,138 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:23,216 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2020-09-04 13:02:23,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:23,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 38 conjunts are in the unsatisfiable core [2020-09-04 13:02:23,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:23,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2020-09-04 13:02:23,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:23,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 24 [2020-09-04 13:02:23,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70268831] [2020-09-04 13:02:23,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-04 13:02:23,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:23,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-04 13:02:23,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=335, Unknown=0, NotChecked=0, Total=552 [2020-09-04 13:02:23,330 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand 24 states. [2020-09-04 13:02:23,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:23,720 INFO L93 Difference]: Finished difference Result 86 states and 96 transitions. [2020-09-04 13:02:23,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-04 13:02:23,721 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 132 [2020-09-04 13:02:23,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:23,723 INFO L225 Difference]: With dead ends: 86 [2020-09-04 13:02:23,723 INFO L226 Difference]: Without dead ends: 82 [2020-09-04 13:02:23,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1152, Unknown=0, NotChecked=0, Total=1806 [2020-09-04 13:02:23,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-04 13:02:23,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2020-09-04 13:02:23,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-04 13:02:23,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2020-09-04 13:02:23,729 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 132 [2020-09-04 13:02:23,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:23,729 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2020-09-04 13:02:23,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-04 13:02:23,730 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2020-09-04 13:02:23,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-04 13:02:23,731 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:23,731 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:23,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:23,937 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:23,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:23,937 INFO L82 PathProgramCache]: Analyzing trace with hash -103968989, now seen corresponding path program 18 times [2020-09-04 13:02:23,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:23,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655143156] [2020-09-04 13:02:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:24,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2020-09-04 13:02:24,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655143156] [2020-09-04 13:02:24,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26440078] [2020-09-04 13:02:24,972 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:25,054 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2020-09-04 13:02:25,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:25,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 40 conjunts are in the unsatisfiable core [2020-09-04 13:02:25,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:25,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2020-09-04 13:02:25,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:25,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 25 [2020-09-04 13:02:25,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273521418] [2020-09-04 13:02:25,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-04 13:02:25,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:25,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-04 13:02:25,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=362, Unknown=0, NotChecked=0, Total=600 [2020-09-04 13:02:25,181 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand 25 states. [2020-09-04 13:02:25,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:25,569 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2020-09-04 13:02:25,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-04 13:02:25,570 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 139 [2020-09-04 13:02:25,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:25,571 INFO L225 Difference]: With dead ends: 89 [2020-09-04 13:02:25,572 INFO L226 Difference]: Without dead ends: 85 [2020-09-04 13:02:25,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=718, Invalid=1262, Unknown=0, NotChecked=0, Total=1980 [2020-09-04 13:02:25,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-04 13:02:25,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2020-09-04 13:02:25,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-04 13:02:25,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2020-09-04 13:02:25,578 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 139 [2020-09-04 13:02:25,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:25,579 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2020-09-04 13:02:25,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-04 13:02:25,579 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2020-09-04 13:02:25,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-04 13:02:25,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:25,581 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:25,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:25,786 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:25,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:25,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1432494106, now seen corresponding path program 19 times [2020-09-04 13:02:25,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:25,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915697159] [2020-09-04 13:02:25,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:25,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:25,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:25,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:26,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:27,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:27,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2020-09-04 13:02:27,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915697159] [2020-09-04 13:02:27,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554940438] [2020-09-04 13:02:27,161 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:27,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 42 conjunts are in the unsatisfiable core [2020-09-04 13:02:27,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:27,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2020-09-04 13:02:27,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:27,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 26 [2020-09-04 13:02:27,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260216506] [2020-09-04 13:02:27,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-09-04 13:02:27,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:27,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-09-04 13:02:27,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=390, Unknown=0, NotChecked=0, Total=650 [2020-09-04 13:02:27,381 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand 26 states. [2020-09-04 13:02:27,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:27,834 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2020-09-04 13:02:27,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-04 13:02:27,835 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 146 [2020-09-04 13:02:27,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:27,839 INFO L225 Difference]: With dead ends: 92 [2020-09-04 13:02:27,839 INFO L226 Difference]: Without dead ends: 88 [2020-09-04 13:02:27,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=785, Invalid=1377, Unknown=0, NotChecked=0, Total=2162 [2020-09-04 13:02:27,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-04 13:02:27,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2020-09-04 13:02:27,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-04 13:02:27,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2020-09-04 13:02:27,845 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 146 [2020-09-04 13:02:27,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:27,845 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2020-09-04 13:02:27,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-09-04 13:02:27,846 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2020-09-04 13:02:27,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 13:02:27,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:27,847 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:28,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:28,060 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:28,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:28,060 INFO L82 PathProgramCache]: Analyzing trace with hash -873938119, now seen corresponding path program 20 times [2020-09-04 13:02:28,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:28,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112617894] [2020-09-04 13:02:28,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:28,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:29,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:29,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:29,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:29,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:29,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:29,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:29,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:29,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:29,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:29,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2020-09-04 13:02:29,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112617894] [2020-09-04 13:02:29,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074333072] [2020-09-04 13:02:29,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:29,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:02:29,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:29,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 44 conjunts are in the unsatisfiable core [2020-09-04 13:02:29,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:30,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2020-09-04 13:02:30,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:30,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 27 [2020-09-04 13:02:30,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536366408] [2020-09-04 13:02:30,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-04 13:02:30,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:30,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-04 13:02:30,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=419, Unknown=0, NotChecked=0, Total=702 [2020-09-04 13:02:30,022 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand 27 states. [2020-09-04 13:02:30,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:30,480 INFO L93 Difference]: Finished difference Result 95 states and 105 transitions. [2020-09-04 13:02:30,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-04 13:02:30,481 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 153 [2020-09-04 13:02:30,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:30,483 INFO L225 Difference]: With dead ends: 95 [2020-09-04 13:02:30,483 INFO L226 Difference]: Without dead ends: 91 [2020-09-04 13:02:30,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=855, Invalid=1497, Unknown=0, NotChecked=0, Total=2352 [2020-09-04 13:02:30,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-09-04 13:02:30,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 89. [2020-09-04 13:02:30,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-04 13:02:30,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2020-09-04 13:02:30,489 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 153 [2020-09-04 13:02:30,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:30,489 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2020-09-04 13:02:30,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-04 13:02:30,490 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2020-09-04 13:02:30,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-04 13:02:30,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:30,491 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:30,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-09-04 13:02:30,704 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:30,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:30,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1461029712, now seen corresponding path program 21 times [2020-09-04 13:02:30,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:30,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310211561] [2020-09-04 13:02:30,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:30,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:30,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:30,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:30,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:31,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:32,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2020-09-04 13:02:32,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310211561] [2020-09-04 13:02:32,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128797673] [2020-09-04 13:02:32,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:32,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2020-09-04 13:02:32,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:32,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 46 conjunts are in the unsatisfiable core [2020-09-04 13:02:32,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:32,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2020-09-04 13:02:32,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:32,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 28 [2020-09-04 13:02:32,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392191366] [2020-09-04 13:02:32,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-09-04 13:02:32,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:32,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-09-04 13:02:32,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=449, Unknown=0, NotChecked=0, Total=756 [2020-09-04 13:02:32,330 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand 28 states. [2020-09-04 13:02:32,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:32,809 INFO L93 Difference]: Finished difference Result 98 states and 108 transitions. [2020-09-04 13:02:32,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-04 13:02:32,809 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 160 [2020-09-04 13:02:32,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:32,811 INFO L225 Difference]: With dead ends: 98 [2020-09-04 13:02:32,812 INFO L226 Difference]: Without dead ends: 94 [2020-09-04 13:02:32,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=928, Invalid=1622, Unknown=0, NotChecked=0, Total=2550 [2020-09-04 13:02:32,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-04 13:02:32,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2020-09-04 13:02:32,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-04 13:02:32,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions. [2020-09-04 13:02:32,818 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 160 [2020-09-04 13:02:32,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:32,818 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions. [2020-09-04 13:02:32,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-09-04 13:02:32,818 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions. [2020-09-04 13:02:32,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 13:02:32,820 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:32,820 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:33,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-09-04 13:02:33,036 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:33,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:33,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1249222577, now seen corresponding path program 22 times [2020-09-04 13:02:33,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:33,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354994108] [2020-09-04 13:02:33,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:33,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:34,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:34,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:34,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:34,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:34,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:34,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:34,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:34,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:34,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2020-09-04 13:02:34,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354994108] [2020-09-04 13:02:34,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418906507] [2020-09-04 13:02:34,436 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:34,521 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:02:34,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:34,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 48 conjunts are in the unsatisfiable core [2020-09-04 13:02:34,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:34,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2020-09-04 13:02:34,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:34,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 29 [2020-09-04 13:02:34,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012282700] [2020-09-04 13:02:34,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-04 13:02:34,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:34,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-04 13:02:34,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=480, Unknown=0, NotChecked=0, Total=812 [2020-09-04 13:02:34,654 INFO L87 Difference]: Start difference. First operand 92 states and 100 transitions. Second operand 29 states. [2020-09-04 13:02:35,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:35,213 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2020-09-04 13:02:35,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-04 13:02:35,213 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 167 [2020-09-04 13:02:35,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:35,214 INFO L225 Difference]: With dead ends: 101 [2020-09-04 13:02:35,215 INFO L226 Difference]: Without dead ends: 97 [2020-09-04 13:02:35,217 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1004, Invalid=1752, Unknown=0, NotChecked=0, Total=2756 [2020-09-04 13:02:35,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-04 13:02:35,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2020-09-04 13:02:35,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-09-04 13:02:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2020-09-04 13:02:35,221 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 167 [2020-09-04 13:02:35,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:35,222 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 103 transitions. [2020-09-04 13:02:35,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-04 13:02:35,222 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 103 transitions. [2020-09-04 13:02:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-04 13:02:35,224 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:35,224 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:35,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:35,438 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:35,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:35,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1284144570, now seen corresponding path program 23 times [2020-09-04 13:02:35,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:35,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270429310] [2020-09-04 13:02:35,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:35,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:35,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:35,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:35,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:35,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:35,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:35,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:35,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:36,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2020-09-04 13:02:36,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270429310] [2020-09-04 13:02:36,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477719356] [2020-09-04 13:02:36,964 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:37,074 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2020-09-04 13:02:37,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:37,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 50 conjunts are in the unsatisfiable core [2020-09-04 13:02:37,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:37,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2020-09-04 13:02:37,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:37,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 30 [2020-09-04 13:02:37,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873683760] [2020-09-04 13:02:37,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-09-04 13:02:37,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:37,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-09-04 13:02:37,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=512, Unknown=0, NotChecked=0, Total=870 [2020-09-04 13:02:37,219 INFO L87 Difference]: Start difference. First operand 95 states and 103 transitions. Second operand 30 states. [2020-09-04 13:02:37,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:37,788 INFO L93 Difference]: Finished difference Result 104 states and 114 transitions. [2020-09-04 13:02:37,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-09-04 13:02:37,789 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 174 [2020-09-04 13:02:37,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:37,791 INFO L225 Difference]: With dead ends: 104 [2020-09-04 13:02:37,791 INFO L226 Difference]: Without dead ends: 100 [2020-09-04 13:02:37,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1083, Invalid=1887, Unknown=0, NotChecked=0, Total=2970 [2020-09-04 13:02:37,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-04 13:02:37,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2020-09-04 13:02:37,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-04 13:02:37,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2020-09-04 13:02:37,798 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 174 [2020-09-04 13:02:37,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:37,799 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2020-09-04 13:02:37,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-09-04 13:02:37,799 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2020-09-04 13:02:37,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-04 13:02:37,800 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:37,800 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:38,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-09-04 13:02:38,014 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:38,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:38,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1205012069, now seen corresponding path program 24 times [2020-09-04 13:02:38,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:38,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226070779] [2020-09-04 13:02:38,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:38,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:39,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:39,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:39,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:39,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:39,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:39,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:39,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:39,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:39,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:39,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:39,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2020-09-04 13:02:39,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226070779] [2020-09-04 13:02:39,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626461120] [2020-09-04 13:02:39,588 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:39,718 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2020-09-04 13:02:39,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:39,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 52 conjunts are in the unsatisfiable core [2020-09-04 13:02:39,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2020-09-04 13:02:39,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:39,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 31 [2020-09-04 13:02:39,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142541175] [2020-09-04 13:02:39,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-04 13:02:39,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:39,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-04 13:02:39,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=385, Invalid=545, Unknown=0, NotChecked=0, Total=930 [2020-09-04 13:02:39,883 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand 31 states. [2020-09-04 13:02:40,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:40,417 INFO L93 Difference]: Finished difference Result 107 states and 117 transitions. [2020-09-04 13:02:40,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-04 13:02:40,417 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 181 [2020-09-04 13:02:40,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:40,419 INFO L225 Difference]: With dead ends: 107 [2020-09-04 13:02:40,419 INFO L226 Difference]: Without dead ends: 103 [2020-09-04 13:02:40,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1165, Invalid=2027, Unknown=0, NotChecked=0, Total=3192 [2020-09-04 13:02:40,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-04 13:02:40,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2020-09-04 13:02:40,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-09-04 13:02:40,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2020-09-04 13:02:40,431 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 181 [2020-09-04 13:02:40,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:40,431 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2020-09-04 13:02:40,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-04 13:02:40,431 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2020-09-04 13:02:40,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-04 13:02:40,432 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:40,433 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:40,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:40,648 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:40,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:40,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1312024796, now seen corresponding path program 25 times [2020-09-04 13:02:40,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:40,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707490354] [2020-09-04 13:02:40,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:40,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:40,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:40,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:40,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:40,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:40,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:41,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:42,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:42,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:42,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:42,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:42,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2020-09-04 13:02:42,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707490354] [2020-09-04 13:02:42,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337124262] [2020-09-04 13:02:42,346 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:42,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 54 conjunts are in the unsatisfiable core [2020-09-04 13:02:42,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:42,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2020-09-04 13:02:42,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:42,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 32 [2020-09-04 13:02:42,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518395215] [2020-09-04 13:02:42,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-09-04 13:02:42,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:42,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-09-04 13:02:42,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=579, Unknown=0, NotChecked=0, Total=992 [2020-09-04 13:02:42,604 INFO L87 Difference]: Start difference. First operand 101 states and 109 transitions. Second operand 32 states. [2020-09-04 13:02:43,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:43,231 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2020-09-04 13:02:43,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-04 13:02:43,231 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 188 [2020-09-04 13:02:43,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:43,232 INFO L225 Difference]: With dead ends: 110 [2020-09-04 13:02:43,233 INFO L226 Difference]: Without dead ends: 106 [2020-09-04 13:02:43,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1250, Invalid=2172, Unknown=0, NotChecked=0, Total=3422 [2020-09-04 13:02:43,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-09-04 13:02:43,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2020-09-04 13:02:43,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-09-04 13:02:43,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2020-09-04 13:02:43,239 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 188 [2020-09-04 13:02:43,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:43,240 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2020-09-04 13:02:43,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-09-04 13:02:43,240 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2020-09-04 13:02:43,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-04 13:02:43,241 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:43,241 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:43,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-09-04 13:02:43,443 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:43,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:43,443 INFO L82 PathProgramCache]: Analyzing trace with hash 461591931, now seen corresponding path program 26 times [2020-09-04 13:02:43,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:43,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415617181] [2020-09-04 13:02:43,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:43,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:43,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:43,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:43,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:43,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:43,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:43,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:43,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:43,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:44,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 0 proven. 1027 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2020-09-04 13:02:45,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415617181] [2020-09-04 13:02:45,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924961152] [2020-09-04 13:02:45,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:45,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:02:45,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:45,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 56 conjunts are in the unsatisfiable core [2020-09-04 13:02:45,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:45,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 0 proven. 1027 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2020-09-04 13:02:45,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:45,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 33 [2020-09-04 13:02:45,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746960303] [2020-09-04 13:02:45,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-09-04 13:02:45,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:45,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-09-04 13:02:45,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=442, Invalid=614, Unknown=0, NotChecked=0, Total=1056 [2020-09-04 13:02:45,457 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand 33 states. [2020-09-04 13:02:46,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:46,116 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2020-09-04 13:02:46,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-09-04 13:02:46,116 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 195 [2020-09-04 13:02:46,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:46,118 INFO L225 Difference]: With dead ends: 113 [2020-09-04 13:02:46,118 INFO L226 Difference]: Without dead ends: 109 [2020-09-04 13:02:46,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1338, Invalid=2322, Unknown=0, NotChecked=0, Total=3660 [2020-09-04 13:02:46,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-04 13:02:46,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2020-09-04 13:02:46,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-09-04 13:02:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 115 transitions. [2020-09-04 13:02:46,126 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 115 transitions. Word has length 195 [2020-09-04 13:02:46,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:46,126 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 115 transitions. [2020-09-04 13:02:46,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-09-04 13:02:46,126 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 115 transitions. [2020-09-04 13:02:46,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-04 13:02:46,128 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:46,128 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:46,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-09-04 13:02:46,329 INFO L427 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:46,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:46,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1460254606, now seen corresponding path program 27 times [2020-09-04 13:02:46,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:46,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62457580] [2020-09-04 13:02:46,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:46,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:46,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:46,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:46,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:46,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:46,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:46,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:46,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:46,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:46,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:47,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:48,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 0 proven. 1107 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2020-09-04 13:02:48,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62457580] [2020-09-04 13:02:48,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512454449] [2020-09-04 13:02:48,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:48,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2020-09-04 13:02:48,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:48,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 58 conjunts are in the unsatisfiable core [2020-09-04 13:02:48,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:48,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 0 proven. 1107 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2020-09-04 13:02:48,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:48,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 34 [2020-09-04 13:02:48,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845816304] [2020-09-04 13:02:48,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-09-04 13:02:48,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:48,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-09-04 13:02:48,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=472, Invalid=650, Unknown=0, NotChecked=0, Total=1122 [2020-09-04 13:02:48,489 INFO L87 Difference]: Start difference. First operand 107 states and 115 transitions. Second operand 34 states. [2020-09-04 13:02:49,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:49,222 INFO L93 Difference]: Finished difference Result 116 states and 126 transitions. [2020-09-04 13:02:49,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-04 13:02:49,223 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 202 [2020-09-04 13:02:49,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:49,224 INFO L225 Difference]: With dead ends: 116 [2020-09-04 13:02:49,224 INFO L226 Difference]: Without dead ends: 112 [2020-09-04 13:02:49,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1429, Invalid=2477, Unknown=0, NotChecked=0, Total=3906 [2020-09-04 13:02:49,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-04 13:02:49,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2020-09-04 13:02:49,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-04 13:02:49,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 118 transitions. [2020-09-04 13:02:49,231 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 118 transitions. Word has length 202 [2020-09-04 13:02:49,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:49,232 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 118 transitions. [2020-09-04 13:02:49,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-09-04 13:02:49,232 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 118 transitions. [2020-09-04 13:02:49,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-04 13:02:49,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:49,233 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:49,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-09-04 13:02:49,446 INFO L427 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:49,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:49,447 INFO L82 PathProgramCache]: Analyzing trace with hash 788262289, now seen corresponding path program 28 times [2020-09-04 13:02:49,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:49,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192355685] [2020-09-04 13:02:49,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:49,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:49,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:49,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:49,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:49,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:49,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:49,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:49,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:50,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:51,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:51,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:51,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:51,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:51,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:51,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:51,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2020-09-04 13:02:51,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192355685] [2020-09-04 13:02:51,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933671827] [2020-09-04 13:02:51,555 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:51,665 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:02:51,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:51,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 60 conjunts are in the unsatisfiable core [2020-09-04 13:02:51,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:51,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2020-09-04 13:02:51,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:51,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 35 [2020-09-04 13:02:51,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428222368] [2020-09-04 13:02:51,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-09-04 13:02:51,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:51,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-09-04 13:02:51,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=503, Invalid=687, Unknown=0, NotChecked=0, Total=1190 [2020-09-04 13:02:51,849 INFO L87 Difference]: Start difference. First operand 110 states and 118 transitions. Second operand 35 states. [2020-09-04 13:02:52,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:52,547 INFO L93 Difference]: Finished difference Result 119 states and 129 transitions. [2020-09-04 13:02:52,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-04 13:02:52,548 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 209 [2020-09-04 13:02:52,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:52,550 INFO L225 Difference]: With dead ends: 119 [2020-09-04 13:02:52,550 INFO L226 Difference]: Without dead ends: 115 [2020-09-04 13:02:52,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1523, Invalid=2637, Unknown=0, NotChecked=0, Total=4160 [2020-09-04 13:02:52,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-09-04 13:02:52,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2020-09-04 13:02:52,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-09-04 13:02:52,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 121 transitions. [2020-09-04 13:02:52,557 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 121 transitions. Word has length 209 [2020-09-04 13:02:52,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:52,558 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 121 transitions. [2020-09-04 13:02:52,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-09-04 13:02:52,558 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 121 transitions. [2020-09-04 13:02:52,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-04 13:02:52,559 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:52,559 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:52,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:52,773 INFO L427 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:52,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:52,774 INFO L82 PathProgramCache]: Analyzing trace with hash -674054408, now seen corresponding path program 29 times [2020-09-04 13:02:52,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:52,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643150340] [2020-09-04 13:02:52,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:52,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:52,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:52,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:53,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:54,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:55,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2958 backedges. 0 proven. 1276 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2020-09-04 13:02:55,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643150340] [2020-09-04 13:02:55,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908044056] [2020-09-04 13:02:55,041 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:55,156 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2020-09-04 13:02:55,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:55,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 62 conjunts are in the unsatisfiable core [2020-09-04 13:02:55,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:55,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2958 backedges. 0 proven. 1276 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2020-09-04 13:02:55,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:55,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 36 [2020-09-04 13:02:55,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145631059] [2020-09-04 13:02:55,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-09-04 13:02:55,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:55,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-09-04 13:02:55,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=535, Invalid=725, Unknown=0, NotChecked=0, Total=1260 [2020-09-04 13:02:55,310 INFO L87 Difference]: Start difference. First operand 113 states and 121 transitions. Second operand 36 states. [2020-09-04 13:02:56,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:56,076 INFO L93 Difference]: Finished difference Result 122 states and 132 transitions. [2020-09-04 13:02:56,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-04 13:02:56,077 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 216 [2020-09-04 13:02:56,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:56,079 INFO L225 Difference]: With dead ends: 122 [2020-09-04 13:02:56,079 INFO L226 Difference]: Without dead ends: 118 [2020-09-04 13:02:56,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 929 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1620, Invalid=2802, Unknown=0, NotChecked=0, Total=4422 [2020-09-04 13:02:56,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-09-04 13:02:56,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2020-09-04 13:02:56,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-04 13:02:56,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 124 transitions. [2020-09-04 13:02:56,086 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 124 transitions. Word has length 216 [2020-09-04 13:02:56,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:56,087 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 124 transitions. [2020-09-04 13:02:56,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-09-04 13:02:56,087 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 124 transitions. [2020-09-04 13:02:56,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-04 13:02:56,088 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:56,088 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:56,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2020-09-04 13:02:56,298 INFO L427 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:56,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:56,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1144876711, now seen corresponding path program 30 times [2020-09-04 13:02:56,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:56,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388760489] [2020-09-04 13:02:56,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:56,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:02:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:56,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:02:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:56,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:56,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:56,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:56,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:56,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:56,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:56,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:57,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:58,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:58,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:58,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:58,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:58,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:58,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:58,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:02:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:02:58,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 0 proven. 1365 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2020-09-04 13:02:58,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388760489] [2020-09-04 13:02:58,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060690025] [2020-09-04 13:02:58,680 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:58,810 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2020-09-04 13:02:58,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:02:58,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 64 conjunts are in the unsatisfiable core [2020-09-04 13:02:58,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:02:58,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 0 proven. 1365 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2020-09-04 13:02:58,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:02:58,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 37 [2020-09-04 13:02:58,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304823202] [2020-09-04 13:02:58,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-09-04 13:02:58,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:02:58,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-09-04 13:02:58,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=568, Invalid=764, Unknown=0, NotChecked=0, Total=1332 [2020-09-04 13:02:58,967 INFO L87 Difference]: Start difference. First operand 116 states and 124 transitions. Second operand 37 states. [2020-09-04 13:02:59,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:02:59,672 INFO L93 Difference]: Finished difference Result 125 states and 135 transitions. [2020-09-04 13:02:59,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-04 13:02:59,672 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 223 [2020-09-04 13:02:59,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:02:59,674 INFO L225 Difference]: With dead ends: 125 [2020-09-04 13:02:59,674 INFO L226 Difference]: Without dead ends: 121 [2020-09-04 13:02:59,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1720, Invalid=2972, Unknown=0, NotChecked=0, Total=4692 [2020-09-04 13:02:59,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-09-04 13:02:59,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2020-09-04 13:02:59,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-09-04 13:02:59,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 127 transitions. [2020-09-04 13:02:59,687 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 127 transitions. Word has length 223 [2020-09-04 13:02:59,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:02:59,688 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 127 transitions. [2020-09-04 13:02:59,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-09-04 13:02:59,689 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 127 transitions. [2020-09-04 13:02:59,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-04 13:02:59,690 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:02:59,691 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:02:59,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:02:59,905 INFO L427 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:02:59,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:02:59,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1122595486, now seen corresponding path program 31 times [2020-09-04 13:02:59,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:02:59,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562655634] [2020-09-04 13:02:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:02:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:03:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:03:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:00,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:01,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:02,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:02,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2020-09-04 13:03:02,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562655634] [2020-09-04 13:03:02,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314437583] [2020-09-04 13:03:02,412 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:02,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 66 conjunts are in the unsatisfiable core [2020-09-04 13:03:02,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:03:02,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 0 proven. 1457 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2020-09-04 13:03:02,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:03:02,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 38 [2020-09-04 13:03:02,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090327430] [2020-09-04 13:03:02,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-09-04 13:03:02,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:03:02,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-09-04 13:03:02,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=602, Invalid=804, Unknown=0, NotChecked=0, Total=1406 [2020-09-04 13:03:02,702 INFO L87 Difference]: Start difference. First operand 119 states and 127 transitions. Second operand 38 states. [2020-09-04 13:03:03,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:03:03,540 INFO L93 Difference]: Finished difference Result 128 states and 138 transitions. [2020-09-04 13:03:03,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-04 13:03:03,541 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 230 [2020-09-04 13:03:03,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:03:03,543 INFO L225 Difference]: With dead ends: 128 [2020-09-04 13:03:03,543 INFO L226 Difference]: Without dead ends: 124 [2020-09-04 13:03:03,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1823, Invalid=3147, Unknown=0, NotChecked=0, Total=4970 [2020-09-04 13:03:03,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-04 13:03:03,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-09-04 13:03:03,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-09-04 13:03:03,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 130 transitions. [2020-09-04 13:03:03,549 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 130 transitions. Word has length 230 [2020-09-04 13:03:03,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:03:03,550 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 130 transitions. [2020-09-04 13:03:03,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-09-04 13:03:03,550 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 130 transitions. [2020-09-04 13:03:03,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-04 13:03:03,552 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:03:03,552 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:03:03,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-09-04 13:03:03,766 INFO L427 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:03:03,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:03:03,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1055422653, now seen corresponding path program 32 times [2020-09-04 13:03:03,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:03:03,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857209977] [2020-09-04 13:03:03,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:03:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:03,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:03:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:03,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:03:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:03,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:04,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:04,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:04,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:04,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:04,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:04,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:04,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:04,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:04,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:04,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:04,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:04,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:05,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:06,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:06,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:06,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:06,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 0 proven. 1552 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2020-09-04 13:03:06,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857209977] [2020-09-04 13:03:06,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215559416] [2020-09-04 13:03:06,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:06,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:03:06,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:03:06,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 68 conjunts are in the unsatisfiable core [2020-09-04 13:03:06,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:03:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 0 proven. 1552 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2020-09-04 13:03:06,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:03:06,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 39 [2020-09-04 13:03:06,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653282964] [2020-09-04 13:03:06,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-09-04 13:03:06,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:03:06,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-09-04 13:03:06,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=637, Invalid=845, Unknown=0, NotChecked=0, Total=1482 [2020-09-04 13:03:06,829 INFO L87 Difference]: Start difference. First operand 122 states and 130 transitions. Second operand 39 states. [2020-09-04 13:03:07,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:03:07,663 INFO L93 Difference]: Finished difference Result 131 states and 141 transitions. [2020-09-04 13:03:07,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-09-04 13:03:07,664 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 237 [2020-09-04 13:03:07,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:03:07,665 INFO L225 Difference]: With dead ends: 131 [2020-09-04 13:03:07,665 INFO L226 Difference]: Without dead ends: 127 [2020-09-04 13:03:07,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1121 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1929, Invalid=3327, Unknown=0, NotChecked=0, Total=5256 [2020-09-04 13:03:07,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-09-04 13:03:07,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-09-04 13:03:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-09-04 13:03:07,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 133 transitions. [2020-09-04 13:03:07,672 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 133 transitions. Word has length 237 [2020-09-04 13:03:07,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:03:07,673 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 133 transitions. [2020-09-04 13:03:07,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-09-04 13:03:07,673 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 133 transitions. [2020-09-04 13:03:07,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-09-04 13:03:07,674 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:03:07,674 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:03:07,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2020-09-04 13:03:07,889 INFO L427 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:03:07,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:03:07,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1624997172, now seen corresponding path program 33 times [2020-09-04 13:03:07,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:03:07,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574980011] [2020-09-04 13:03:07,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:03:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:07,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:03:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:07,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:03:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:08,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:08,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:08,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:08,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:08,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:08,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:08,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:08,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:08,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:08,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:08,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:09,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:10,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:10,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:10,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:10,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:10,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:10,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:10,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:10,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 0 proven. 1650 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2020-09-04 13:03:10,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574980011] [2020-09-04 13:03:10,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487679208] [2020-09-04 13:03:10,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:10,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2020-09-04 13:03:10,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:03:10,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 70 conjunts are in the unsatisfiable core [2020-09-04 13:03:10,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:03:11,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 0 proven. 1650 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2020-09-04 13:03:11,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:03:11,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 40 [2020-09-04 13:03:11,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103095143] [2020-09-04 13:03:11,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-09-04 13:03:11,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:03:11,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-09-04 13:03:11,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=673, Invalid=887, Unknown=0, NotChecked=0, Total=1560 [2020-09-04 13:03:11,106 INFO L87 Difference]: Start difference. First operand 125 states and 133 transitions. Second operand 40 states. [2020-09-04 13:03:12,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:03:12,015 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2020-09-04 13:03:12,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-09-04 13:03:12,016 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 244 [2020-09-04 13:03:12,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:03:12,018 INFO L225 Difference]: With dead ends: 134 [2020-09-04 13:03:12,018 INFO L226 Difference]: Without dead ends: 130 [2020-09-04 13:03:12,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1189 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2038, Invalid=3512, Unknown=0, NotChecked=0, Total=5550 [2020-09-04 13:03:12,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-09-04 13:03:12,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2020-09-04 13:03:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-09-04 13:03:12,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 136 transitions. [2020-09-04 13:03:12,024 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 136 transitions. Word has length 244 [2020-09-04 13:03:12,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:03:12,025 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 136 transitions. [2020-09-04 13:03:12,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-09-04 13:03:12,025 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 136 transitions. [2020-09-04 13:03:12,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-04 13:03:12,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:03:12,026 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:03:12,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-09-04 13:03:12,239 INFO L427 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:03:12,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:03:12,240 INFO L82 PathProgramCache]: Analyzing trace with hash -2109887533, now seen corresponding path program 34 times [2020-09-04 13:03:12,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:03:12,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805853139] [2020-09-04 13:03:12,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:03:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:12,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:03:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:12,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:03:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:12,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:12,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:12,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:12,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:12,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:12,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:12,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:13,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:14,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:15,354 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 0 proven. 1751 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked. [2020-09-04 13:03:15,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805853139] [2020-09-04 13:03:15,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547261375] [2020-09-04 13:03:15,355 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:15,478 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:03:15,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:03:15,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 72 conjunts are in the unsatisfiable core [2020-09-04 13:03:15,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:03:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 0 proven. 1751 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked. [2020-09-04 13:03:15,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:03:15,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 41 [2020-09-04 13:03:15,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663884458] [2020-09-04 13:03:15,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-09-04 13:03:15,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:03:15,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-09-04 13:03:15,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=710, Invalid=930, Unknown=0, NotChecked=0, Total=1640 [2020-09-04 13:03:15,683 INFO L87 Difference]: Start difference. First operand 128 states and 136 transitions. Second operand 41 states. [2020-09-04 13:03:16,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:03:16,654 INFO L93 Difference]: Finished difference Result 137 states and 147 transitions. [2020-09-04 13:03:16,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-04 13:03:16,655 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 251 [2020-09-04 13:03:16,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:03:16,657 INFO L225 Difference]: With dead ends: 137 [2020-09-04 13:03:16,658 INFO L226 Difference]: Without dead ends: 133 [2020-09-04 13:03:16,659 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1259 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2150, Invalid=3702, Unknown=0, NotChecked=0, Total=5852 [2020-09-04 13:03:16,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-09-04 13:03:16,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2020-09-04 13:03:16,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-09-04 13:03:16,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 139 transitions. [2020-09-04 13:03:16,665 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 139 transitions. Word has length 251 [2020-09-04 13:03:16,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:03:16,666 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 139 transitions. [2020-09-04 13:03:16,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-09-04 13:03:16,666 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 139 transitions. [2020-09-04 13:03:16,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-09-04 13:03:16,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:03:16,667 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:03:16,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2020-09-04 13:03:16,882 INFO L427 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:03:16,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:03:16,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1202454326, now seen corresponding path program 35 times [2020-09-04 13:03:16,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:03:16,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954862167] [2020-09-04 13:03:16,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:03:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:17,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:03:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:17,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:03:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:17,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:17,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:17,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:17,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:17,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:17,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:17,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:17,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:17,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:18,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:19,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:19,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:19,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:19,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:19,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:19,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:19,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:19,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:19,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:19,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:19,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:19,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:20,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 0 proven. 1855 refuted. 0 times theorem prover too weak. 2450 trivial. 0 not checked. [2020-09-04 13:03:20,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954862167] [2020-09-04 13:03:20,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813782927] [2020-09-04 13:03:20,243 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:20,393 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2020-09-04 13:03:20,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:03:20,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 74 conjunts are in the unsatisfiable core [2020-09-04 13:03:20,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:03:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 0 proven. 1855 refuted. 0 times theorem prover too weak. 2450 trivial. 0 not checked. [2020-09-04 13:03:20,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:03:20,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 42 [2020-09-04 13:03:20,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219628525] [2020-09-04 13:03:20,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-09-04 13:03:20,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:03:20,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-09-04 13:03:20,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=748, Invalid=974, Unknown=0, NotChecked=0, Total=1722 [2020-09-04 13:03:20,579 INFO L87 Difference]: Start difference. First operand 131 states and 139 transitions. Second operand 42 states. [2020-09-04 13:03:21,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:03:21,555 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2020-09-04 13:03:21,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-09-04 13:03:21,556 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 258 [2020-09-04 13:03:21,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:03:21,558 INFO L225 Difference]: With dead ends: 140 [2020-09-04 13:03:21,558 INFO L226 Difference]: Without dead ends: 136 [2020-09-04 13:03:21,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1331 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2265, Invalid=3897, Unknown=0, NotChecked=0, Total=6162 [2020-09-04 13:03:21,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-04 13:03:21,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2020-09-04 13:03:21,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-09-04 13:03:21,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 142 transitions. [2020-09-04 13:03:21,565 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 142 transitions. Word has length 258 [2020-09-04 13:03:21,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:03:21,566 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 142 transitions. [2020-09-04 13:03:21,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-09-04 13:03:21,566 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 142 transitions. [2020-09-04 13:03:21,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-04 13:03:21,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:03:21,568 INFO L422 BasicCegarLoop]: trace histogram [37, 37, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:03:21,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-09-04 13:03:21,782 INFO L427 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:03:21,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:03:21,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1327343593, now seen corresponding path program 36 times [2020-09-04 13:03:21,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:03:21,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989553795] [2020-09-04 13:03:21,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:03:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:21,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:03:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:21,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:03:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:22,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:22,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:22,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:22,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:22,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:22,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:22,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:22,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:22,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:22,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:23,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:24,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:24,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:24,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:24,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:24,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:24,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:24,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:24,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:24,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:24,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:24,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:24,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:25,242 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 0 proven. 1962 refuted. 0 times theorem prover too weak. 2592 trivial. 0 not checked. [2020-09-04 13:03:25,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989553795] [2020-09-04 13:03:25,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274349] [2020-09-04 13:03:25,243 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:25,399 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2020-09-04 13:03:25,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:03:25,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 76 conjunts are in the unsatisfiable core [2020-09-04 13:03:25,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:03:25,574 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 0 proven. 1962 refuted. 0 times theorem prover too weak. 2592 trivial. 0 not checked. [2020-09-04 13:03:25,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:03:25,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 43 [2020-09-04 13:03:25,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756249429] [2020-09-04 13:03:25,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-09-04 13:03:25,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:03:25,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-09-04 13:03:25,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=787, Invalid=1019, Unknown=0, NotChecked=0, Total=1806 [2020-09-04 13:03:25,577 INFO L87 Difference]: Start difference. First operand 134 states and 142 transitions. Second operand 43 states. [2020-09-04 13:03:26,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:03:26,576 INFO L93 Difference]: Finished difference Result 143 states and 153 transitions. [2020-09-04 13:03:26,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-09-04 13:03:26,577 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 265 [2020-09-04 13:03:26,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:03:26,579 INFO L225 Difference]: With dead ends: 143 [2020-09-04 13:03:26,579 INFO L226 Difference]: Without dead ends: 139 [2020-09-04 13:03:26,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1405 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2383, Invalid=4097, Unknown=0, NotChecked=0, Total=6480 [2020-09-04 13:03:26,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-09-04 13:03:26,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 137. [2020-09-04 13:03:26,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-09-04 13:03:26,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 145 transitions. [2020-09-04 13:03:26,586 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 145 transitions. Word has length 265 [2020-09-04 13:03:26,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:03:26,586 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 145 transitions. [2020-09-04 13:03:26,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-09-04 13:03:26,587 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 145 transitions. [2020-09-04 13:03:26,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-09-04 13:03:26,588 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:03:26,588 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:03:26,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-09-04 13:03:26,803 INFO L427 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:03:26,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:03:26,804 INFO L82 PathProgramCache]: Analyzing trace with hash -742628704, now seen corresponding path program 37 times [2020-09-04 13:03:26,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:03:26,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785348532] [2020-09-04 13:03:26,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:03:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:26,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:03:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:26,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:03:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:27,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:27,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:27,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:27,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:27,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:27,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:27,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:27,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:27,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:28,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:28,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:28,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:28,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:28,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:28,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:28,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:28,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:28,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:28,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:28,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:28,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:28,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:29,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:30,652 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 0 proven. 2072 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2020-09-04 13:03:30,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785348532] [2020-09-04 13:03:30,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978690460] [2020-09-04 13:03:30,652 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:30,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 78 conjunts are in the unsatisfiable core [2020-09-04 13:03:30,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:03:30,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 0 proven. 2072 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2020-09-04 13:03:30,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:03:30,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 44 [2020-09-04 13:03:30,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018656373] [2020-09-04 13:03:30,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-09-04 13:03:30,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:03:30,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-09-04 13:03:30,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=827, Invalid=1065, Unknown=0, NotChecked=0, Total=1892 [2020-09-04 13:03:30,962 INFO L87 Difference]: Start difference. First operand 137 states and 145 transitions. Second operand 44 states. [2020-09-04 13:03:31,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:03:31,886 INFO L93 Difference]: Finished difference Result 146 states and 156 transitions. [2020-09-04 13:03:31,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-04 13:03:31,887 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 272 [2020-09-04 13:03:31,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:03:31,889 INFO L225 Difference]: With dead ends: 146 [2020-09-04 13:03:31,889 INFO L226 Difference]: Without dead ends: 142 [2020-09-04 13:03:31,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1481 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2504, Invalid=4302, Unknown=0, NotChecked=0, Total=6806 [2020-09-04 13:03:31,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-09-04 13:03:31,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 140. [2020-09-04 13:03:31,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-04 13:03:31,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 148 transitions. [2020-09-04 13:03:31,898 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 148 transitions. Word has length 272 [2020-09-04 13:03:31,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:03:31,899 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 148 transitions. [2020-09-04 13:03:31,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-09-04 13:03:31,899 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 148 transitions. [2020-09-04 13:03:31,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-09-04 13:03:31,901 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:03:31,901 INFO L422 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:03:32,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-09-04 13:03:32,114 INFO L427 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:03:32,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:03:32,115 INFO L82 PathProgramCache]: Analyzing trace with hash 571018495, now seen corresponding path program 38 times [2020-09-04 13:03:32,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:03:32,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942929590] [2020-09-04 13:03:32,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:03:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:32,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:03:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:32,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:03:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:32,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:32,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:32,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:32,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:32,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:33,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:33,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:33,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:33,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:33,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:33,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:33,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:34,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:35,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:36,475 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 0 proven. 2185 refuted. 0 times theorem prover too weak. 2888 trivial. 0 not checked. [2020-09-04 13:03:36,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942929590] [2020-09-04 13:03:36,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498831971] [2020-09-04 13:03:36,475 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:36,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:03:36,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:03:36,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 80 conjunts are in the unsatisfiable core [2020-09-04 13:03:36,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:03:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 0 proven. 2185 refuted. 0 times theorem prover too weak. 2888 trivial. 0 not checked. [2020-09-04 13:03:36,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:03:36,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 45 [2020-09-04 13:03:36,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525828590] [2020-09-04 13:03:36,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-09-04 13:03:36,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:03:36,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-09-04 13:03:36,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=868, Invalid=1112, Unknown=0, NotChecked=0, Total=1980 [2020-09-04 13:03:36,796 INFO L87 Difference]: Start difference. First operand 140 states and 148 transitions. Second operand 45 states. [2020-09-04 13:03:37,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:03:37,899 INFO L93 Difference]: Finished difference Result 149 states and 159 transitions. [2020-09-04 13:03:37,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-04 13:03:37,899 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 279 [2020-09-04 13:03:37,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:03:37,903 INFO L225 Difference]: With dead ends: 149 [2020-09-04 13:03:37,903 INFO L226 Difference]: Without dead ends: 145 [2020-09-04 13:03:37,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1559 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2628, Invalid=4512, Unknown=0, NotChecked=0, Total=7140 [2020-09-04 13:03:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-09-04 13:03:37,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 143. [2020-09-04 13:03:37,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-09-04 13:03:37,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 151 transitions. [2020-09-04 13:03:37,912 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 151 transitions. Word has length 279 [2020-09-04 13:03:37,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:03:37,912 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 151 transitions. [2020-09-04 13:03:37,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-09-04 13:03:37,912 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 151 transitions. [2020-09-04 13:03:37,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-09-04 13:03:37,914 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:03:37,914 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:03:38,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-09-04 13:03:38,127 INFO L427 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:03:38,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:03:38,128 INFO L82 PathProgramCache]: Analyzing trace with hash -708506358, now seen corresponding path program 39 times [2020-09-04 13:03:38,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:03:38,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146554377] [2020-09-04 13:03:38,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:03:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:38,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:03:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:38,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:03:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:38,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:38,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:38,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:38,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:38,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:39,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:39,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:39,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:39,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:39,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:39,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:39,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:39,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:39,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:40,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:40,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:40,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:40,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:40,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:40,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:40,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:40,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:40,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:40,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:40,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:40,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:41,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 5343 backedges. 0 proven. 2301 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2020-09-04 13:03:42,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146554377] [2020-09-04 13:03:42,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515280373] [2020-09-04 13:03:42,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:42,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2020-09-04 13:03:42,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:03:42,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 82 conjunts are in the unsatisfiable core [2020-09-04 13:03:42,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:03:43,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5343 backedges. 0 proven. 2301 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2020-09-04 13:03:43,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:03:43,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 46 [2020-09-04 13:03:43,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17727146] [2020-09-04 13:03:43,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-09-04 13:03:43,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:03:43,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-09-04 13:03:43,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=910, Invalid=1160, Unknown=0, NotChecked=0, Total=2070 [2020-09-04 13:03:43,076 INFO L87 Difference]: Start difference. First operand 143 states and 151 transitions. Second operand 46 states. [2020-09-04 13:03:44,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:03:44,242 INFO L93 Difference]: Finished difference Result 152 states and 162 transitions. [2020-09-04 13:03:44,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-09-04 13:03:44,243 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 286 [2020-09-04 13:03:44,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:03:44,244 INFO L225 Difference]: With dead ends: 152 [2020-09-04 13:03:44,244 INFO L226 Difference]: Without dead ends: 148 [2020-09-04 13:03:44,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1639 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2755, Invalid=4727, Unknown=0, NotChecked=0, Total=7482 [2020-09-04 13:03:44,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-04 13:03:44,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2020-09-04 13:03:44,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-04 13:03:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 154 transitions. [2020-09-04 13:03:44,250 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 154 transitions. Word has length 286 [2020-09-04 13:03:44,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:03:44,251 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 154 transitions. [2020-09-04 13:03:44,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-09-04 13:03:44,251 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 154 transitions. [2020-09-04 13:03:44,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-09-04 13:03:44,252 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:03:44,252 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:03:44,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:44,453 INFO L427 AbstractCegarLoop]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:03:44,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:03:44,454 INFO L82 PathProgramCache]: Analyzing trace with hash 287341333, now seen corresponding path program 40 times [2020-09-04 13:03:44,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:03:44,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625610720] [2020-09-04 13:03:44,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:03:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:44,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:03:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:44,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:03:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:44,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:44,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:44,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:45,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:45,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:45,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:45,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:45,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:45,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:45,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:45,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:45,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:46,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:46,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:46,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:46,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:46,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:46,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:46,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:46,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:46,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:46,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:46,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:46,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:47,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:48,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:48,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:48,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:48,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 5620 backedges. 0 proven. 2420 refuted. 0 times theorem prover too weak. 3200 trivial. 0 not checked. [2020-09-04 13:03:49,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625610720] [2020-09-04 13:03:49,028 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620422536] [2020-09-04 13:03:49,028 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:49,167 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:03:49,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:03:49,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 84 conjunts are in the unsatisfiable core [2020-09-04 13:03:49,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:03:49,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5620 backedges. 0 proven. 2420 refuted. 0 times theorem prover too weak. 3200 trivial. 0 not checked. [2020-09-04 13:03:49,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:03:49,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 47 [2020-09-04 13:03:49,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035408459] [2020-09-04 13:03:49,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-09-04 13:03:49,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:03:49,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-09-04 13:03:49,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=953, Invalid=1209, Unknown=0, NotChecked=0, Total=2162 [2020-09-04 13:03:49,393 INFO L87 Difference]: Start difference. First operand 146 states and 154 transitions. Second operand 47 states. [2020-09-04 13:03:50,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:03:50,503 INFO L93 Difference]: Finished difference Result 155 states and 165 transitions. [2020-09-04 13:03:50,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-09-04 13:03:50,504 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 293 [2020-09-04 13:03:50,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:03:50,506 INFO L225 Difference]: With dead ends: 155 [2020-09-04 13:03:50,506 INFO L226 Difference]: Without dead ends: 151 [2020-09-04 13:03:50,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1721 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2885, Invalid=4947, Unknown=0, NotChecked=0, Total=7832 [2020-09-04 13:03:50,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-09-04 13:03:50,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2020-09-04 13:03:50,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-09-04 13:03:50,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 157 transitions. [2020-09-04 13:03:50,513 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 157 transitions. Word has length 293 [2020-09-04 13:03:50,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:03:50,514 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 157 transitions. [2020-09-04 13:03:50,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-09-04 13:03:50,514 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 157 transitions. [2020-09-04 13:03:50,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-09-04 13:03:50,516 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:03:50,516 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:03:50,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:50,731 INFO L427 AbstractCegarLoop]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:03:50,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:03:50,732 INFO L82 PathProgramCache]: Analyzing trace with hash 2006277748, now seen corresponding path program 41 times [2020-09-04 13:03:50,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:03:50,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733294165] [2020-09-04 13:03:50,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:03:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:50,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:03:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:50,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:03:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:51,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:51,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:51,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:51,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:51,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:51,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:51,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:51,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:52,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:52,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:52,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:52,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:52,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:52,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:52,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:52,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:52,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:52,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:52,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:53,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:53,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:53,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:53,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:53,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:53,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:53,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:53,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:53,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:53,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:53,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:53,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:54,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:54,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:54,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:54,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:54,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:54,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:54,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:54,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:54,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:54,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:54,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:54,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:55,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5904 backedges. 0 proven. 2542 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked. [2020-09-04 13:03:55,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733294165] [2020-09-04 13:03:55,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613380440] [2020-09-04 13:03:55,449 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:03:55,629 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2020-09-04 13:03:55,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:03:55,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 86 conjunts are in the unsatisfiable core [2020-09-04 13:03:55,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:03:55,828 INFO L134 CoverageAnalysis]: Checked inductivity of 5904 backedges. 0 proven. 2542 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked. [2020-09-04 13:03:55,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:03:55,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 48 [2020-09-04 13:03:55,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705551565] [2020-09-04 13:03:55,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-09-04 13:03:55,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:03:55,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-09-04 13:03:55,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=997, Invalid=1259, Unknown=0, NotChecked=0, Total=2256 [2020-09-04 13:03:55,830 INFO L87 Difference]: Start difference. First operand 149 states and 157 transitions. Second operand 48 states. [2020-09-04 13:03:57,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:03:57,047 INFO L93 Difference]: Finished difference Result 158 states and 168 transitions. [2020-09-04 13:03:57,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-04 13:03:57,047 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 300 [2020-09-04 13:03:57,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:03:57,048 INFO L225 Difference]: With dead ends: 158 [2020-09-04 13:03:57,048 INFO L226 Difference]: Without dead ends: 154 [2020-09-04 13:03:57,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1805 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=3018, Invalid=5172, Unknown=0, NotChecked=0, Total=8190 [2020-09-04 13:03:57,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-04 13:03:57,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2020-09-04 13:03:57,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-04 13:03:57,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 160 transitions. [2020-09-04 13:03:57,055 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 160 transitions. Word has length 300 [2020-09-04 13:03:57,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:03:57,055 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 160 transitions. [2020-09-04 13:03:57,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-09-04 13:03:57,055 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 160 transitions. [2020-09-04 13:03:57,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-09-04 13:03:57,057 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:03:57,057 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:03:57,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2020-09-04 13:03:57,269 INFO L427 AbstractCegarLoop]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:03:57,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:03:57,270 INFO L82 PathProgramCache]: Analyzing trace with hash 707039787, now seen corresponding path program 42 times [2020-09-04 13:03:57,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:03:57,271 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224279163] [2020-09-04 13:03:57,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:03:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:57,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:03:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:57,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:03:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:57,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:57,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:57,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:57,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:58,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:58,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:58,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:58,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:58,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:58,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:58,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:58,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:59,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:59,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:59,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:59,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:59,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:59,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:59,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:59,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:59,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:59,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:03:59,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:03:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:00,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:01,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:01,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:01,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:01,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:01,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:01,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 6195 backedges. 0 proven. 2667 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2020-09-04 13:04:02,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224279163] [2020-09-04 13:04:02,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71795926] [2020-09-04 13:04:02,162 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:04:02,347 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2020-09-04 13:04:02,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:04:02,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 88 conjunts are in the unsatisfiable core [2020-09-04 13:04:02,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:04:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 6195 backedges. 0 proven. 2667 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2020-09-04 13:04:02,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:04:02,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 49 [2020-09-04 13:04:02,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192190660] [2020-09-04 13:04:02,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-09-04 13:04:02,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:04:02,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-09-04 13:04:02,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1042, Invalid=1310, Unknown=0, NotChecked=0, Total=2352 [2020-09-04 13:04:02,568 INFO L87 Difference]: Start difference. First operand 152 states and 160 transitions. Second operand 49 states. [2020-09-04 13:04:03,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:04:03,904 INFO L93 Difference]: Finished difference Result 161 states and 171 transitions. [2020-09-04 13:04:03,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-09-04 13:04:03,905 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 307 [2020-09-04 13:04:03,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:04:03,907 INFO L225 Difference]: With dead ends: 161 [2020-09-04 13:04:03,907 INFO L226 Difference]: Without dead ends: 157 [2020-09-04 13:04:03,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1891 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3154, Invalid=5402, Unknown=0, NotChecked=0, Total=8556 [2020-09-04 13:04:03,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-09-04 13:04:03,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2020-09-04 13:04:03,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-04 13:04:03,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 163 transitions. [2020-09-04 13:04:03,914 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 163 transitions. Word has length 307 [2020-09-04 13:04:03,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:04:03,914 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 163 transitions. [2020-09-04 13:04:03,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-09-04 13:04:03,915 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 163 transitions. [2020-09-04 13:04:03,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-09-04 13:04:03,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:04:03,917 INFO L422 BasicCegarLoop]: trace histogram [44, 44, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:04:04,129 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:04:04,129 INFO L427 AbstractCegarLoop]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:04:04,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:04:04,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1671645474, now seen corresponding path program 43 times [2020-09-04 13:04:04,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:04:04,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729731280] [2020-09-04 13:04:04,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:04:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:04,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:04:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:04,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:04:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:04,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:04,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:04,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:04,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:04,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:05,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:05,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:05,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:05,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:05,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:05,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:05,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:05,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:06,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:06,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:06,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:06,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:06,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:06,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:06,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:06,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:06,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:06,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:06,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:07,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:07,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:07,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:07,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:07,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:07,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:07,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:07,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:07,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:07,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:07,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:07,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:08,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:08,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:08,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:08,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:08,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:08,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:08,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:09,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6493 backedges. 0 proven. 2795 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2020-09-04 13:04:09,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729731280] [2020-09-04 13:04:09,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220089257] [2020-09-04 13:04:09,316 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:04:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:09,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 90 conjunts are in the unsatisfiable core [2020-09-04 13:04:09,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:04:09,738 INFO L134 CoverageAnalysis]: Checked inductivity of 6493 backedges. 0 proven. 2795 refuted. 0 times theorem prover too weak. 3698 trivial. 0 not checked. [2020-09-04 13:04:09,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:04:09,739 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 50 [2020-09-04 13:04:09,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938566615] [2020-09-04 13:04:09,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-09-04 13:04:09,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:04:09,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-09-04 13:04:09,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1088, Invalid=1362, Unknown=0, NotChecked=0, Total=2450 [2020-09-04 13:04:09,742 INFO L87 Difference]: Start difference. First operand 155 states and 163 transitions. Second operand 50 states. [2020-09-04 13:04:11,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:04:11,074 INFO L93 Difference]: Finished difference Result 164 states and 174 transitions. [2020-09-04 13:04:11,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-09-04 13:04:11,075 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 314 [2020-09-04 13:04:11,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:04:11,077 INFO L225 Difference]: With dead ends: 164 [2020-09-04 13:04:11,077 INFO L226 Difference]: Without dead ends: 160 [2020-09-04 13:04:11,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1979 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=3293, Invalid=5637, Unknown=0, NotChecked=0, Total=8930 [2020-09-04 13:04:11,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-04 13:04:11,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2020-09-04 13:04:11,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-09-04 13:04:11,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 166 transitions. [2020-09-04 13:04:11,083 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 166 transitions. Word has length 314 [2020-09-04 13:04:11,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:04:11,084 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 166 transitions. [2020-09-04 13:04:11,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-09-04 13:04:11,084 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 166 transitions. [2020-09-04 13:04:11,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-09-04 13:04:11,086 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:04:11,086 INFO L422 BasicCegarLoop]: trace histogram [45, 45, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:04:11,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:04:11,300 INFO L427 AbstractCegarLoop]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:04:11,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:04:11,301 INFO L82 PathProgramCache]: Analyzing trace with hash -797576639, now seen corresponding path program 44 times [2020-09-04 13:04:11,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:04:11,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659807386] [2020-09-04 13:04:11,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:04:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:11,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:04:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:11,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:04:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:11,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:11,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:11,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:11,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:12,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:12,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:12,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:12,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:12,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:12,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:12,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:12,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:13,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:13,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:13,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:13,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:13,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:13,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:13,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:13,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:13,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:13,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:14,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:14,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:14,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:14,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:14,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:14,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:14,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:14,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:14,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:14,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:14,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:14,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:15,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:15,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:15,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:15,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:15,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:15,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:15,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:15,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:15,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:15,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:15,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:16,681 INFO L134 CoverageAnalysis]: Checked inductivity of 6798 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 3872 trivial. 0 not checked. [2020-09-04 13:04:16,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659807386] [2020-09-04 13:04:16,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654458037] [2020-09-04 13:04:16,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:04:16,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:04:16,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:04:16,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 92 conjunts are in the unsatisfiable core [2020-09-04 13:04:16,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:04:17,111 INFO L134 CoverageAnalysis]: Checked inductivity of 6798 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 3872 trivial. 0 not checked. [2020-09-04 13:04:17,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:04:17,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 51 [2020-09-04 13:04:17,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821219136] [2020-09-04 13:04:17,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-09-04 13:04:17,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:04:17,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-09-04 13:04:17,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1135, Invalid=1415, Unknown=0, NotChecked=0, Total=2550 [2020-09-04 13:04:17,113 INFO L87 Difference]: Start difference. First operand 158 states and 166 transitions. Second operand 51 states. [2020-09-04 13:04:18,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:04:18,483 INFO L93 Difference]: Finished difference Result 167 states and 177 transitions. [2020-09-04 13:04:18,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-09-04 13:04:18,484 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 321 [2020-09-04 13:04:18,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:04:18,485 INFO L225 Difference]: With dead ends: 167 [2020-09-04 13:04:18,485 INFO L226 Difference]: Without dead ends: 163 [2020-09-04 13:04:18,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2069 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3435, Invalid=5877, Unknown=0, NotChecked=0, Total=9312 [2020-09-04 13:04:18,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-09-04 13:04:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 161. [2020-09-04 13:04:18,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2020-09-04 13:04:18,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 169 transitions. [2020-09-04 13:04:18,492 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 169 transitions. Word has length 321 [2020-09-04 13:04:18,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:04:18,493 INFO L479 AbstractCegarLoop]: Abstraction has 161 states and 169 transitions. [2020-09-04 13:04:18,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-09-04 13:04:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 169 transitions. [2020-09-04 13:04:18,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-09-04 13:04:18,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:04:18,495 INFO L422 BasicCegarLoop]: trace histogram [46, 46, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:04:18,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-09-04 13:04:18,708 INFO L427 AbstractCegarLoop]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:04:18,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:04:18,709 INFO L82 PathProgramCache]: Analyzing trace with hash 44725832, now seen corresponding path program 45 times [2020-09-04 13:04:18,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:04:18,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971612217] [2020-09-04 13:04:18,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:04:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:18,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:04:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:18,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:04:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:18,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:19,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:19,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:19,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:19,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:19,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:19,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:20,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:20,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:20,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:20,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:20,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:20,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:20,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:20,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:20,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:20,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:21,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:21,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:21,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:21,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:21,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:21,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:21,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:21,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:21,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:21,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:22,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:23,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:23,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:23,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:23,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:23,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:23,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:23,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:24,394 INFO L134 CoverageAnalysis]: Checked inductivity of 7110 backedges. 0 proven. 3060 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked. [2020-09-04 13:04:24,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971612217] [2020-09-04 13:04:24,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057645616] [2020-09-04 13:04:24,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:04:24,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2020-09-04 13:04:24,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:04:24,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 94 conjunts are in the unsatisfiable core [2020-09-04 13:04:24,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:04:24,825 INFO L134 CoverageAnalysis]: Checked inductivity of 7110 backedges. 0 proven. 3060 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked. [2020-09-04 13:04:24,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:04:24,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 52 [2020-09-04 13:04:24,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765035624] [2020-09-04 13:04:24,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-09-04 13:04:24,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:04:24,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-09-04 13:04:24,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1183, Invalid=1469, Unknown=0, NotChecked=0, Total=2652 [2020-09-04 13:04:24,827 INFO L87 Difference]: Start difference. First operand 161 states and 169 transitions. Second operand 52 states. [2020-09-04 13:04:26,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:04:26,235 INFO L93 Difference]: Finished difference Result 170 states and 180 transitions. [2020-09-04 13:04:26,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-09-04 13:04:26,236 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 328 [2020-09-04 13:04:26,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:04:26,238 INFO L225 Difference]: With dead ends: 170 [2020-09-04 13:04:26,238 INFO L226 Difference]: Without dead ends: 166 [2020-09-04 13:04:26,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2161 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=3580, Invalid=6122, Unknown=0, NotChecked=0, Total=9702 [2020-09-04 13:04:26,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-04 13:04:26,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2020-09-04 13:04:26,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-09-04 13:04:26,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 172 transitions. [2020-09-04 13:04:26,244 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 172 transitions. Word has length 328 [2020-09-04 13:04:26,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:04:26,245 INFO L479 AbstractCegarLoop]: Abstraction has 164 states and 172 transitions. [2020-09-04 13:04:26,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-09-04 13:04:26,245 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 172 transitions. [2020-09-04 13:04:26,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-09-04 13:04:26,247 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:04:26,247 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:04:26,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2020-09-04 13:04:26,462 INFO L427 AbstractCegarLoop]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:04:26,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:04:26,463 INFO L82 PathProgramCache]: Analyzing trace with hash 454376279, now seen corresponding path program 46 times [2020-09-04 13:04:26,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:04:26,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047967476] [2020-09-04 13:04:26,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:04:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:26,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:04:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:26,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:04:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:26,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:26,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:27,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:27,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:27,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:27,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:27,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:27,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:27,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:28,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:28,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:28,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:28,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:28,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:28,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:28,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:28,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:28,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:29,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:29,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:29,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:29,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:29,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:29,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:29,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:29,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:29,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:29,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:30,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:30,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:30,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:30,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:30,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:30,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:30,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:30,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:30,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:30,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:30,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:30,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:31,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:31,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:31,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:31,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:31,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:31,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2020-09-04 13:04:32,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047967476] [2020-09-04 13:04:32,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451480880] [2020-09-04 13:04:32,479 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:04:32,657 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:04:32,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:04:32,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 96 conjunts are in the unsatisfiable core [2020-09-04 13:04:32,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:04:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2020-09-04 13:04:32,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:04:32,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 53 [2020-09-04 13:04:32,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520673271] [2020-09-04 13:04:32,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-09-04 13:04:32,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:04:32,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-09-04 13:04:32,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1232, Invalid=1524, Unknown=0, NotChecked=0, Total=2756 [2020-09-04 13:04:32,882 INFO L87 Difference]: Start difference. First operand 164 states and 172 transitions. Second operand 53 states. [2020-09-04 13:04:34,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:04:34,387 INFO L93 Difference]: Finished difference Result 173 states and 183 transitions. [2020-09-04 13:04:34,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-09-04 13:04:34,388 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 335 [2020-09-04 13:04:34,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:04:34,389 INFO L225 Difference]: With dead ends: 173 [2020-09-04 13:04:34,390 INFO L226 Difference]: Without dead ends: 169 [2020-09-04 13:04:34,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2255 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=3728, Invalid=6372, Unknown=0, NotChecked=0, Total=10100 [2020-09-04 13:04:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-09-04 13:04:34,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 167. [2020-09-04 13:04:34,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-09-04 13:04:34,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 175 transitions. [2020-09-04 13:04:34,397 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 175 transitions. Word has length 335 [2020-09-04 13:04:34,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:04:34,397 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 175 transitions. [2020-09-04 13:04:34,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-09-04 13:04:34,398 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 175 transitions. [2020-09-04 13:04:34,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-09-04 13:04:34,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:04:34,400 INFO L422 BasicCegarLoop]: trace histogram [48, 48, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:04:34,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2020-09-04 13:04:34,614 INFO L427 AbstractCegarLoop]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:04:34,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:04:34,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1718484146, now seen corresponding path program 47 times [2020-09-04 13:04:34,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:04:34,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639998376] [2020-09-04 13:04:34,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:04:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:34,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:04:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:34,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:04:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:34,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:35,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:35,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:35,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:35,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:35,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:35,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:35,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:36,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:36,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:36,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:36,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:36,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:36,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:36,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:36,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:37,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:37,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:37,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:37,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:37,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:37,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:37,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:37,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:37,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:38,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:38,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:38,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:38,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:38,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:38,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:38,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:38,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:38,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:38,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:38,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:39,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:39,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:39,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:39,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:39,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:39,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:39,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:39,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:39,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:39,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:39,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:40,863 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 0 proven. 3337 refuted. 0 times theorem prover too weak. 4418 trivial. 0 not checked. [2020-09-04 13:04:40,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639998376] [2020-09-04 13:04:40,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547612274] [2020-09-04 13:04:40,863 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:04:41,072 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2020-09-04 13:04:41,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:04:41,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 98 conjunts are in the unsatisfiable core [2020-09-04 13:04:41,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:04:41,376 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 0 proven. 3337 refuted. 0 times theorem prover too weak. 4418 trivial. 0 not checked. [2020-09-04 13:04:41,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:04:41,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 54 [2020-09-04 13:04:41,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971502212] [2020-09-04 13:04:41,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-09-04 13:04:41,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:04:41,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-09-04 13:04:41,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1282, Invalid=1580, Unknown=0, NotChecked=0, Total=2862 [2020-09-04 13:04:41,379 INFO L87 Difference]: Start difference. First operand 167 states and 175 transitions. Second operand 54 states. [2020-09-04 13:04:42,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:04:42,898 INFO L93 Difference]: Finished difference Result 176 states and 186 transitions. [2020-09-04 13:04:42,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-09-04 13:04:42,899 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 342 [2020-09-04 13:04:42,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:04:42,901 INFO L225 Difference]: With dead ends: 176 [2020-09-04 13:04:42,901 INFO L226 Difference]: Without dead ends: 172 [2020-09-04 13:04:42,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2351 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3879, Invalid=6627, Unknown=0, NotChecked=0, Total=10506 [2020-09-04 13:04:42,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-09-04 13:04:42,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 170. [2020-09-04 13:04:42,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-09-04 13:04:42,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 178 transitions. [2020-09-04 13:04:42,907 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 178 transitions. Word has length 342 [2020-09-04 13:04:42,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:04:42,908 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 178 transitions. [2020-09-04 13:04:42,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-09-04 13:04:42,908 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 178 transitions. [2020-09-04 13:04:42,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-09-04 13:04:42,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:04:42,910 INFO L422 BasicCegarLoop]: trace histogram [49, 49, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:04:43,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:04:43,125 INFO L427 AbstractCegarLoop]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:04:43,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:04:43,125 INFO L82 PathProgramCache]: Analyzing trace with hash 849546605, now seen corresponding path program 48 times [2020-09-04 13:04:43,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:04:43,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875686640] [2020-09-04 13:04:43,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:04:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:43,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:04:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:43,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:04:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:43,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:43,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:43,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:43,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:44,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:44,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:44,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:44,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:44,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:44,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:44,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:45,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:45,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:45,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:45,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:45,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:45,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:45,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:45,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:46,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:46,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:46,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:46,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:46,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:46,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:46,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:46,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:46,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:46,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:47,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:47,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:47,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:47,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:47,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:47,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:47,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:47,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:47,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:47,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:47,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:47,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:48,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:48,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:48,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:48,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:48,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:48,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:48,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:49,650 INFO L134 CoverageAnalysis]: Checked inductivity of 8088 backedges. 0 proven. 3480 refuted. 0 times theorem prover too weak. 4608 trivial. 0 not checked. [2020-09-04 13:04:49,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875686640] [2020-09-04 13:04:49,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555928400] [2020-09-04 13:04:49,651 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:04:49,852 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2020-09-04 13:04:49,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:04:49,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 100 conjunts are in the unsatisfiable core [2020-09-04 13:04:49,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:04:50,153 INFO L134 CoverageAnalysis]: Checked inductivity of 8088 backedges. 0 proven. 3480 refuted. 0 times theorem prover too weak. 4608 trivial. 0 not checked. [2020-09-04 13:04:50,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:04:50,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 55 [2020-09-04 13:04:50,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007578779] [2020-09-04 13:04:50,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-09-04 13:04:50,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:04:50,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-09-04 13:04:50,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1333, Invalid=1637, Unknown=0, NotChecked=0, Total=2970 [2020-09-04 13:04:50,156 INFO L87 Difference]: Start difference. First operand 170 states and 178 transitions. Second operand 55 states. [2020-09-04 13:04:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:04:51,593 INFO L93 Difference]: Finished difference Result 179 states and 189 transitions. [2020-09-04 13:04:51,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-09-04 13:04:51,594 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 349 [2020-09-04 13:04:51,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:04:51,595 INFO L225 Difference]: With dead ends: 179 [2020-09-04 13:04:51,596 INFO L226 Difference]: Without dead ends: 175 [2020-09-04 13:04:51,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2449 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4033, Invalid=6887, Unknown=0, NotChecked=0, Total=10920 [2020-09-04 13:04:51,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-09-04 13:04:51,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2020-09-04 13:04:51,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-09-04 13:04:51,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 181 transitions. [2020-09-04 13:04:51,601 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 181 transitions. Word has length 349 [2020-09-04 13:04:51,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:04:51,602 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 181 transitions. [2020-09-04 13:04:51,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 55 states. [2020-09-04 13:04:51,602 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 181 transitions. [2020-09-04 13:04:51,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-09-04 13:04:51,604 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:04:51,604 INFO L422 BasicCegarLoop]: trace histogram [50, 50, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:04:51,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-09-04 13:04:51,819 INFO L427 AbstractCegarLoop]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:04:51,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:04:51,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1560892900, now seen corresponding path program 49 times [2020-09-04 13:04:51,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:04:51,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288625801] [2020-09-04 13:04:51,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:04:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:51,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:04:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:51,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:04:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:52,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:52,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:52,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:52,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:52,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:53,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:53,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:53,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:53,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:53,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:53,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:53,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:53,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:54,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:54,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:54,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:54,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:54,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:54,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:54,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:54,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:55,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:55,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:55,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:55,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:55,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:55,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:55,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:55,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:55,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:55,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:55,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:56,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:56,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:56,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:56,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:56,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:56,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:56,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:56,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:56,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:56,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:56,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:56,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:57,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:57,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:57,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:57,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:57,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:57,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:57,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:04:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:58,746 INFO L134 CoverageAnalysis]: Checked inductivity of 8428 backedges. 0 proven. 3626 refuted. 0 times theorem prover too weak. 4802 trivial. 0 not checked. [2020-09-04 13:04:58,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288625801] [2020-09-04 13:04:58,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668522760] [2020-09-04 13:04:58,746 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:04:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:04:58,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 102 conjunts are in the unsatisfiable core [2020-09-04 13:04:58,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:04:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 8428 backedges. 0 proven. 3626 refuted. 0 times theorem prover too weak. 4802 trivial. 0 not checked. [2020-09-04 13:04:59,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:04:59,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 56 [2020-09-04 13:04:59,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227927107] [2020-09-04 13:04:59,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 56 states [2020-09-04 13:04:59,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:04:59,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2020-09-04 13:04:59,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1385, Invalid=1695, Unknown=0, NotChecked=0, Total=3080 [2020-09-04 13:04:59,294 INFO L87 Difference]: Start difference. First operand 173 states and 181 transitions. Second operand 56 states. [2020-09-04 13:05:00,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:05:00,930 INFO L93 Difference]: Finished difference Result 182 states and 192 transitions. [2020-09-04 13:05:00,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-09-04 13:05:00,931 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 356 [2020-09-04 13:05:00,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:05:00,933 INFO L225 Difference]: With dead ends: 182 [2020-09-04 13:05:00,933 INFO L226 Difference]: Without dead ends: 178 [2020-09-04 13:05:00,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2549 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=4190, Invalid=7152, Unknown=0, NotChecked=0, Total=11342 [2020-09-04 13:05:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-04 13:05:00,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 176. [2020-09-04 13:05:00,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-09-04 13:05:00,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 184 transitions. [2020-09-04 13:05:00,940 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 184 transitions. Word has length 356 [2020-09-04 13:05:00,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:05:00,940 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 184 transitions. [2020-09-04 13:05:00,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 56 states. [2020-09-04 13:05:00,940 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 184 transitions. [2020-09-04 13:05:00,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2020-09-04 13:05:00,943 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:05:00,943 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:05:01,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:05:01,147 INFO L427 AbstractCegarLoop]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:05:01,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:05:01,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1352660861, now seen corresponding path program 50 times [2020-09-04 13:05:01,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:05:01,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358126466] [2020-09-04 13:05:01,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:05:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:01,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:05:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:01,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:05:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:01,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:01,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:01,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:01,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:02,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:02,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:02,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:02,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:02,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:02,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:03,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:03,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:03,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:03,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:03,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:03,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:03,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:03,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:04,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:04,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:04,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:04,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:04,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:04,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:04,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:04,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:04,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:05,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:05,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:05,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:05,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:05,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:05,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:05,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:05,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:05,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:06,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:06,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:06,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:06,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:06,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:06,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:06,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:06,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:06,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:06,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:06,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:06,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:07,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:07,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:08,394 INFO L134 CoverageAnalysis]: Checked inductivity of 8775 backedges. 0 proven. 3775 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2020-09-04 13:05:08,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358126466] [2020-09-04 13:05:08,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333676869] [2020-09-04 13:05:08,395 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:05:08,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:05:08,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:05:08,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 104 conjunts are in the unsatisfiable core [2020-09-04 13:05:08,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:05:08,841 INFO L134 CoverageAnalysis]: Checked inductivity of 8775 backedges. 0 proven. 3775 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2020-09-04 13:05:08,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:05:08,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 57 [2020-09-04 13:05:08,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145710608] [2020-09-04 13:05:08,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-09-04 13:05:08,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:05:08,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-09-04 13:05:08,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1438, Invalid=1754, Unknown=0, NotChecked=0, Total=3192 [2020-09-04 13:05:08,843 INFO L87 Difference]: Start difference. First operand 176 states and 184 transitions. Second operand 57 states. [2020-09-04 13:05:10,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:05:10,559 INFO L93 Difference]: Finished difference Result 185 states and 195 transitions. [2020-09-04 13:05:10,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-09-04 13:05:10,559 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 363 [2020-09-04 13:05:10,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:05:10,561 INFO L225 Difference]: With dead ends: 185 [2020-09-04 13:05:10,562 INFO L226 Difference]: Without dead ends: 181 [2020-09-04 13:05:10,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2651 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=4350, Invalid=7422, Unknown=0, NotChecked=0, Total=11772 [2020-09-04 13:05:10,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-04 13:05:10,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 179. [2020-09-04 13:05:10,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-09-04 13:05:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 187 transitions. [2020-09-04 13:05:10,568 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 187 transitions. Word has length 363 [2020-09-04 13:05:10,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:05:10,569 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 187 transitions. [2020-09-04 13:05:10,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-09-04 13:05:10,569 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 187 transitions. [2020-09-04 13:05:10,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-09-04 13:05:10,571 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:05:10,571 INFO L422 BasicCegarLoop]: trace histogram [52, 52, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:05:10,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:05:10,784 INFO L427 AbstractCegarLoop]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:05:10,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:05:10,785 INFO L82 PathProgramCache]: Analyzing trace with hash -722215290, now seen corresponding path program 51 times [2020-09-04 13:05:10,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:05:10,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025906549] [2020-09-04 13:05:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:05:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:10,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:05:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:10,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:05:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:11,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:11,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:11,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:11,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:11,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:11,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:12,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:12,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:12,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:12,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:12,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:12,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:13,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:13,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:13,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:13,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:13,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:13,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:13,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:13,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:14,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:14,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:14,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:14,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:14,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:14,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:14,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:14,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:14,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:15,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:15,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:15,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:15,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:15,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:15,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:15,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:15,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:15,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:15,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:15,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:16,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:16,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:16,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:16,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:16,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:16,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:16,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:16,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:16,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:16,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:16,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:18,298 INFO L134 CoverageAnalysis]: Checked inductivity of 9129 backedges. 0 proven. 3927 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked. [2020-09-04 13:05:18,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025906549] [2020-09-04 13:05:18,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598312970] [2020-09-04 13:05:18,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:05:18,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2020-09-04 13:05:18,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:05:18,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 106 conjunts are in the unsatisfiable core [2020-09-04 13:05:18,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:05:18,853 INFO L134 CoverageAnalysis]: Checked inductivity of 9129 backedges. 0 proven. 3927 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked. [2020-09-04 13:05:18,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:05:18,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 58 [2020-09-04 13:05:18,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905837322] [2020-09-04 13:05:18,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 58 states [2020-09-04 13:05:18,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:05:18,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2020-09-04 13:05:18,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1492, Invalid=1814, Unknown=0, NotChecked=0, Total=3306 [2020-09-04 13:05:18,855 INFO L87 Difference]: Start difference. First operand 179 states and 187 transitions. Second operand 58 states. [2020-09-04 13:05:20,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:05:20,618 INFO L93 Difference]: Finished difference Result 188 states and 198 transitions. [2020-09-04 13:05:20,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-09-04 13:05:20,618 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 370 [2020-09-04 13:05:20,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:05:20,620 INFO L225 Difference]: With dead ends: 188 [2020-09-04 13:05:20,621 INFO L226 Difference]: Without dead ends: 184 [2020-09-04 13:05:20,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 474 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2755 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=4513, Invalid=7697, Unknown=0, NotChecked=0, Total=12210 [2020-09-04 13:05:20,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-09-04 13:05:20,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 182. [2020-09-04 13:05:20,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-04 13:05:20,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 190 transitions. [2020-09-04 13:05:20,627 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 190 transitions. Word has length 370 [2020-09-04 13:05:20,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:05:20,628 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 190 transitions. [2020-09-04 13:05:20,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 58 states. [2020-09-04 13:05:20,628 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 190 transitions. [2020-09-04 13:05:20,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2020-09-04 13:05:20,630 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:05:20,630 INFO L422 BasicCegarLoop]: trace histogram [53, 53, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:05:20,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2020-09-04 13:05:20,844 INFO L427 AbstractCegarLoop]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:05:20,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:05:20,845 INFO L82 PathProgramCache]: Analyzing trace with hash -148058983, now seen corresponding path program 52 times [2020-09-04 13:05:20,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:05:20,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146524249] [2020-09-04 13:05:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:05:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:21,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:05:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:21,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:05:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:21,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:21,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:21,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:21,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:21,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:22,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:22,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:22,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:22,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:22,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:22,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:22,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:23,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:23,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:23,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:23,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:23,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:23,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:23,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:24,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:24,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:24,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:24,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:24,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:24,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:24,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:24,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:25,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:25,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:25,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:25,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:25,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:25,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:25,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:25,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:25,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:26,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:26,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:26,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:26,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:26,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:26,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:26,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:26,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:26,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:26,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:26,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:26,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:26,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:27,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:27,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:27,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:27,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:28,758 INFO L134 CoverageAnalysis]: Checked inductivity of 9490 backedges. 0 proven. 4082 refuted. 0 times theorem prover too weak. 5408 trivial. 0 not checked. [2020-09-04 13:05:28,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146524249] [2020-09-04 13:05:28,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791894136] [2020-09-04 13:05:28,758 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:05:28,935 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:05:28,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:05:28,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 108 conjunts are in the unsatisfiable core [2020-09-04 13:05:28,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:05:29,300 INFO L134 CoverageAnalysis]: Checked inductivity of 9490 backedges. 0 proven. 4082 refuted. 0 times theorem prover too weak. 5408 trivial. 0 not checked. [2020-09-04 13:05:29,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:05:29,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 59 [2020-09-04 13:05:29,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515591219] [2020-09-04 13:05:29,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-09-04 13:05:29,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:05:29,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-09-04 13:05:29,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1547, Invalid=1875, Unknown=0, NotChecked=0, Total=3422 [2020-09-04 13:05:29,303 INFO L87 Difference]: Start difference. First operand 182 states and 190 transitions. Second operand 59 states. [2020-09-04 13:05:31,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:05:31,154 INFO L93 Difference]: Finished difference Result 191 states and 201 transitions. [2020-09-04 13:05:31,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-09-04 13:05:31,155 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 377 [2020-09-04 13:05:31,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:05:31,156 INFO L225 Difference]: With dead ends: 191 [2020-09-04 13:05:31,156 INFO L226 Difference]: Without dead ends: 187 [2020-09-04 13:05:31,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2861 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4679, Invalid=7977, Unknown=0, NotChecked=0, Total=12656 [2020-09-04 13:05:31,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-09-04 13:05:31,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 185. [2020-09-04 13:05:31,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-09-04 13:05:31,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 193 transitions. [2020-09-04 13:05:31,163 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 193 transitions. Word has length 377 [2020-09-04 13:05:31,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:05:31,163 INFO L479 AbstractCegarLoop]: Abstraction has 185 states and 193 transitions. [2020-09-04 13:05:31,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 59 states. [2020-09-04 13:05:31,164 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 193 transitions. [2020-09-04 13:05:31,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2020-09-04 13:05:31,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:05:31,166 INFO L422 BasicCegarLoop]: trace histogram [54, 54, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:05:31,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:05:31,379 INFO L427 AbstractCegarLoop]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:05:31,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:05:31,380 INFO L82 PathProgramCache]: Analyzing trace with hash 2088040944, now seen corresponding path program 53 times [2020-09-04 13:05:31,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:05:31,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878342030] [2020-09-04 13:05:31,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:05:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:31,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:05:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:31,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:05:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:31,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:31,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:32,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:32,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:32,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:32,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:32,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:32,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:33,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:33,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:33,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:33,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:33,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:33,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:33,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:34,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:34,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:34,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:34,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:34,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:34,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:34,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:34,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:34,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:35,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:35,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:35,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:35,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:35,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:35,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:35,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:35,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:35,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:36,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:36,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:36,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:36,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:36,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:36,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:36,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:36,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:36,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:36,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:37,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:37,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:37,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:37,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:37,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:37,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:37,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:37,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:37,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:37,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:37,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:38,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:38,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:39,742 INFO L134 CoverageAnalysis]: Checked inductivity of 9858 backedges. 0 proven. 4240 refuted. 0 times theorem prover too weak. 5618 trivial. 0 not checked. [2020-09-04 13:05:39,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878342030] [2020-09-04 13:05:39,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036705198] [2020-09-04 13:05:39,742 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:05:39,978 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2020-09-04 13:05:39,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:05:39,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 110 conjunts are in the unsatisfiable core [2020-09-04 13:05:39,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:05:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 9858 backedges. 0 proven. 4240 refuted. 0 times theorem prover too weak. 5618 trivial. 0 not checked. [2020-09-04 13:05:40,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:05:40,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 60 [2020-09-04 13:05:40,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630800223] [2020-09-04 13:05:40,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 60 states [2020-09-04 13:05:40,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:05:40,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2020-09-04 13:05:40,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1603, Invalid=1937, Unknown=0, NotChecked=0, Total=3540 [2020-09-04 13:05:40,302 INFO L87 Difference]: Start difference. First operand 185 states and 193 transitions. Second operand 60 states. [2020-09-04 13:05:42,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:05:42,188 INFO L93 Difference]: Finished difference Result 194 states and 204 transitions. [2020-09-04 13:05:42,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-09-04 13:05:42,189 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 384 [2020-09-04 13:05:42,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:05:42,190 INFO L225 Difference]: With dead ends: 194 [2020-09-04 13:05:42,190 INFO L226 Difference]: Without dead ends: 190 [2020-09-04 13:05:42,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2969 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=4848, Invalid=8262, Unknown=0, NotChecked=0, Total=13110 [2020-09-04 13:05:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-04 13:05:42,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2020-09-04 13:05:42,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-09-04 13:05:42,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 196 transitions. [2020-09-04 13:05:42,197 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 196 transitions. Word has length 384 [2020-09-04 13:05:42,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:05:42,198 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 196 transitions. [2020-09-04 13:05:42,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 60 states. [2020-09-04 13:05:42,198 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 196 transitions. [2020-09-04 13:05:42,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-09-04 13:05:42,200 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:05:42,200 INFO L422 BasicCegarLoop]: trace histogram [55, 55, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:05:42,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2020-09-04 13:05:42,413 INFO L427 AbstractCegarLoop]: === Iteration 56 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:05:42,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:05:42,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1685456465, now seen corresponding path program 54 times [2020-09-04 13:05:42,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:05:42,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249249373] [2020-09-04 13:05:42,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:05:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:42,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:05:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:42,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:05:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:42,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:43,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:43,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:43,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:43,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:43,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:44,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:44,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:44,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:44,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:44,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:44,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:45,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:45,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:45,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:45,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:45,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:45,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:45,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:46,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:46,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:46,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:46,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:46,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:46,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:46,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:47,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:47,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:47,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:47,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:47,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:47,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:47,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:47,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:47,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:48,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:48,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:48,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:48,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:48,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:48,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:48,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:48,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:48,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:48,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:48,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:49,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:49,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:49,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:49,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:49,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:49,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:49,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:49,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:49,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:51,403 INFO L134 CoverageAnalysis]: Checked inductivity of 10233 backedges. 0 proven. 4401 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2020-09-04 13:05:51,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249249373] [2020-09-04 13:05:51,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976889992] [2020-09-04 13:05:51,404 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:05:51,636 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2020-09-04 13:05:51,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:05:51,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 112 conjunts are in the unsatisfiable core [2020-09-04 13:05:51,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:05:51,924 INFO L134 CoverageAnalysis]: Checked inductivity of 10233 backedges. 0 proven. 4401 refuted. 0 times theorem prover too weak. 5832 trivial. 0 not checked. [2020-09-04 13:05:51,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:05:51,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 61 [2020-09-04 13:05:51,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128141971] [2020-09-04 13:05:51,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2020-09-04 13:05:51,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:05:51,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2020-09-04 13:05:51,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1660, Invalid=2000, Unknown=0, NotChecked=0, Total=3660 [2020-09-04 13:05:51,926 INFO L87 Difference]: Start difference. First operand 188 states and 196 transitions. Second operand 61 states. [2020-09-04 13:05:53,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:05:53,843 INFO L93 Difference]: Finished difference Result 197 states and 207 transitions. [2020-09-04 13:05:53,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-09-04 13:05:53,844 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 391 [2020-09-04 13:05:53,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:05:53,846 INFO L225 Difference]: With dead ends: 197 [2020-09-04 13:05:53,846 INFO L226 Difference]: Without dead ends: 193 [2020-09-04 13:05:53,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3079 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5020, Invalid=8552, Unknown=0, NotChecked=0, Total=13572 [2020-09-04 13:05:53,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-09-04 13:05:53,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 191. [2020-09-04 13:05:53,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-04 13:05:53,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 199 transitions. [2020-09-04 13:05:53,853 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 199 transitions. Word has length 391 [2020-09-04 13:05:53,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:05:53,853 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 199 transitions. [2020-09-04 13:05:53,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 61 states. [2020-09-04 13:05:53,853 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 199 transitions. [2020-09-04 13:05:53,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2020-09-04 13:05:53,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:05:53,856 INFO L422 BasicCegarLoop]: trace histogram [56, 56, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:05:54,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2020-09-04 13:05:54,065 INFO L427 AbstractCegarLoop]: === Iteration 57 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:05:54,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:05:54,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1628873638, now seen corresponding path program 55 times [2020-09-04 13:05:54,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:05:54,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553066098] [2020-09-04 13:05:54,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:05:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:54,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:05:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:54,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:05:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:54,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:54,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:54,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:55,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:55,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:55,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:55,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:55,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:55,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:56,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:56,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:56,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:56,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:56,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:56,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:57,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:57,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:57,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:57,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:57,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:57,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:57,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:58,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:58,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:58,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:58,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:58,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:58,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:58,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:58,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:59,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:59,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:59,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:59,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:59,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:59,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:59,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:59,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:05:59,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:05:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:00,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:00,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:00,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:00,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:00,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:00,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:00,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:00,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:00,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:00,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:00,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:01,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:01,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:01,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:01,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:01,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:03,230 INFO L134 CoverageAnalysis]: Checked inductivity of 10615 backedges. 0 proven. 4565 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked. [2020-09-04 13:06:03,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553066098] [2020-09-04 13:06:03,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347878895] [2020-09-04 13:06:03,230 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:06:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:03,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 114 conjunts are in the unsatisfiable core [2020-09-04 13:06:03,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:06:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 10615 backedges. 0 proven. 4565 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked. [2020-09-04 13:06:03,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:06:03,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 62 [2020-09-04 13:06:03,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002925241] [2020-09-04 13:06:03,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 62 states [2020-09-04 13:06:03,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:06:03,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2020-09-04 13:06:03,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1718, Invalid=2064, Unknown=0, NotChecked=0, Total=3782 [2020-09-04 13:06:03,719 INFO L87 Difference]: Start difference. First operand 191 states and 199 transitions. Second operand 62 states. [2020-09-04 13:06:05,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:06:05,794 INFO L93 Difference]: Finished difference Result 200 states and 210 transitions. [2020-09-04 13:06:05,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-09-04 13:06:05,795 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 398 [2020-09-04 13:06:05,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:06:05,797 INFO L225 Difference]: With dead ends: 200 [2020-09-04 13:06:05,797 INFO L226 Difference]: Without dead ends: 196 [2020-09-04 13:06:05,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 510 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3191 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=5195, Invalid=8847, Unknown=0, NotChecked=0, Total=14042 [2020-09-04 13:06:05,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-09-04 13:06:05,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2020-09-04 13:06:05,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-09-04 13:06:05,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 202 transitions. [2020-09-04 13:06:05,804 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 202 transitions. Word has length 398 [2020-09-04 13:06:05,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:06:05,804 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 202 transitions. [2020-09-04 13:06:05,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 62 states. [2020-09-04 13:06:05,805 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 202 transitions. [2020-09-04 13:06:05,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2020-09-04 13:06:05,807 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:06:05,807 INFO L422 BasicCegarLoop]: trace histogram [57, 57, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:06:06,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:06:06,021 INFO L427 AbstractCegarLoop]: === Iteration 58 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:06:06,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:06:06,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1214763067, now seen corresponding path program 56 times [2020-09-04 13:06:06,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:06:06,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749840568] [2020-09-04 13:06:06,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:06:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:06,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:06:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:06,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:06:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:06,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:06,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:06,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:07,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:07,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:07,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:07,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:07,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:07,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:08,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:08,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:08,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:08,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:08,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:08,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:09,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:09,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:09,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:09,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:09,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:09,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:10,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:10,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:10,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:10,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:10,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:10,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:10,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:10,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:11,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:11,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:11,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:11,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:11,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:11,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:11,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:12,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:12,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:12,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:12,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:12,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:12,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:12,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:12,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:12,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:12,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:13,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:13,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:13,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:13,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:13,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:13,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:13,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:13,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:13,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:13,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:13,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 11004 backedges. 0 proven. 4732 refuted. 0 times theorem prover too weak. 6272 trivial. 0 not checked. [2020-09-04 13:06:15,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749840568] [2020-09-04 13:06:15,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649412229] [2020-09-04 13:06:15,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:06:15,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:06:15,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:06:15,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 116 conjunts are in the unsatisfiable core [2020-09-04 13:06:15,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:06:16,269 INFO L134 CoverageAnalysis]: Checked inductivity of 11004 backedges. 0 proven. 4732 refuted. 0 times theorem prover too weak. 6272 trivial. 0 not checked. [2020-09-04 13:06:16,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:06:16,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 63 [2020-09-04 13:06:16,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62827019] [2020-09-04 13:06:16,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-09-04 13:06:16,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:06:16,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-09-04 13:06:16,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1777, Invalid=2129, Unknown=0, NotChecked=0, Total=3906 [2020-09-04 13:06:16,270 INFO L87 Difference]: Start difference. First operand 194 states and 202 transitions. Second operand 63 states. [2020-09-04 13:06:18,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:06:18,388 INFO L93 Difference]: Finished difference Result 203 states and 213 transitions. [2020-09-04 13:06:18,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-09-04 13:06:18,389 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 405 [2020-09-04 13:06:18,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:06:18,390 INFO L225 Difference]: With dead ends: 203 [2020-09-04 13:06:18,390 INFO L226 Difference]: Without dead ends: 199 [2020-09-04 13:06:18,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3305 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=5373, Invalid=9147, Unknown=0, NotChecked=0, Total=14520 [2020-09-04 13:06:18,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-09-04 13:06:18,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 197. [2020-09-04 13:06:18,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-09-04 13:06:18,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 205 transitions. [2020-09-04 13:06:18,398 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 205 transitions. Word has length 405 [2020-09-04 13:06:18,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:06:18,398 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 205 transitions. [2020-09-04 13:06:18,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-09-04 13:06:18,399 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 205 transitions. [2020-09-04 13:06:18,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2020-09-04 13:06:18,401 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:06:18,401 INFO L422 BasicCegarLoop]: trace histogram [58, 58, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:06:18,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2020-09-04 13:06:18,614 INFO L427 AbstractCegarLoop]: === Iteration 59 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:06:18,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:06:18,615 INFO L82 PathProgramCache]: Analyzing trace with hash -383752764, now seen corresponding path program 57 times [2020-09-04 13:06:18,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:06:18,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302452209] [2020-09-04 13:06:18,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:06:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:18,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:06:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:18,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:06:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:19,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:19,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:19,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:19,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:19,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:20,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:20,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:20,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:20,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:20,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:20,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:21,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:21,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:21,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:21,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:21,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:22,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:22,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:22,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:22,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:22,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:22,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:22,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:23,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:23,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:23,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:23,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:23,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:23,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:23,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:23,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:24,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:24,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:24,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:24,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:24,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:24,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:24,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:24,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:24,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:24,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:25,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:25,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:25,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:25,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:25,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:25,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:25,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:25,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:25,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:25,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:26,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:26,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:26,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:26,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:26,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:26,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:26,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:26,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:28,874 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 4902 refuted. 0 times theorem prover too weak. 6498 trivial. 0 not checked. [2020-09-04 13:06:28,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302452209] [2020-09-04 13:06:28,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822444596] [2020-09-04 13:06:28,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:06:29,133 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2020-09-04 13:06:29,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:06:29,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 118 conjunts are in the unsatisfiable core [2020-09-04 13:06:29,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:06:29,442 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 4902 refuted. 0 times theorem prover too weak. 6498 trivial. 0 not checked. [2020-09-04 13:06:29,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:06:29,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 64 [2020-09-04 13:06:29,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30650498] [2020-09-04 13:06:29,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 64 states [2020-09-04 13:06:29,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:06:29,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2020-09-04 13:06:29,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1837, Invalid=2195, Unknown=0, NotChecked=0, Total=4032 [2020-09-04 13:06:29,445 INFO L87 Difference]: Start difference. First operand 197 states and 205 transitions. Second operand 64 states. [2020-09-04 13:06:31,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:06:31,575 INFO L93 Difference]: Finished difference Result 206 states and 216 transitions. [2020-09-04 13:06:31,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-09-04 13:06:31,575 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 412 [2020-09-04 13:06:31,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:06:31,577 INFO L225 Difference]: With dead ends: 206 [2020-09-04 13:06:31,577 INFO L226 Difference]: Without dead ends: 202 [2020-09-04 13:06:31,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3421 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=5554, Invalid=9452, Unknown=0, NotChecked=0, Total=15006 [2020-09-04 13:06:31,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-04 13:06:31,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 200. [2020-09-04 13:06:31,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-09-04 13:06:31,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 208 transitions. [2020-09-04 13:06:31,584 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 208 transitions. Word has length 412 [2020-09-04 13:06:31,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:06:31,585 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 208 transitions. [2020-09-04 13:06:31,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 64 states. [2020-09-04 13:06:31,585 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 208 transitions. [2020-09-04 13:06:31,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2020-09-04 13:06:31,587 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:06:31,588 INFO L422 BasicCegarLoop]: trace histogram [59, 59, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:06:31,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:06:31,800 INFO L427 AbstractCegarLoop]: === Iteration 60 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:06:31,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:06:31,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1310199515, now seen corresponding path program 58 times [2020-09-04 13:06:31,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:06:31,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953965160] [2020-09-04 13:06:31,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:06:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:32,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:06:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:32,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:06:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:32,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:32,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:32,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:32,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:33,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:33,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:33,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:33,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:33,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:33,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:34,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:34,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:34,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:34,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:34,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:34,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:35,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:35,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:35,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:35,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:35,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:35,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:35,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:36,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:36,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:36,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:36,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:36,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:36,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:37,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:37,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:37,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:37,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:37,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:37,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:37,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:37,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:37,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:38,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:38,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:38,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:38,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:38,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:38,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:38,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:38,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:38,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:39,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:39,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:39,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:39,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:39,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:39,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:39,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:39,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:39,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:39,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:40,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:40,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 11803 backedges. 0 proven. 5075 refuted. 0 times theorem prover too weak. 6728 trivial. 0 not checked. [2020-09-04 13:06:42,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953965160] [2020-09-04 13:06:42,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701163700] [2020-09-04 13:06:42,066 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:06:42,264 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:06:42,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:06:42,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 1145 conjuncts, 120 conjunts are in the unsatisfiable core [2020-09-04 13:06:42,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:06:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 11803 backedges. 0 proven. 5075 refuted. 0 times theorem prover too weak. 6728 trivial. 0 not checked. [2020-09-04 13:06:42,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:06:42,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 65 [2020-09-04 13:06:42,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286515399] [2020-09-04 13:06:42,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2020-09-04 13:06:42,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:06:42,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2020-09-04 13:06:42,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1898, Invalid=2262, Unknown=0, NotChecked=0, Total=4160 [2020-09-04 13:06:42,580 INFO L87 Difference]: Start difference. First operand 200 states and 208 transitions. Second operand 65 states. [2020-09-04 13:06:44,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:06:44,820 INFO L93 Difference]: Finished difference Result 209 states and 219 transitions. [2020-09-04 13:06:44,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-09-04 13:06:44,821 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 419 [2020-09-04 13:06:44,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:06:44,823 INFO L225 Difference]: With dead ends: 209 [2020-09-04 13:06:44,823 INFO L226 Difference]: Without dead ends: 205 [2020-09-04 13:06:44,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3539 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=5738, Invalid=9762, Unknown=0, NotChecked=0, Total=15500 [2020-09-04 13:06:44,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-09-04 13:06:44,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2020-09-04 13:06:44,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-09-04 13:06:44,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 211 transitions. [2020-09-04 13:06:44,830 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 211 transitions. Word has length 419 [2020-09-04 13:06:44,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:06:44,830 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 211 transitions. [2020-09-04 13:06:44,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 65 states. [2020-09-04 13:06:44,830 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 211 transitions. [2020-09-04 13:06:44,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2020-09-04 13:06:44,833 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:06:44,833 INFO L422 BasicCegarLoop]: trace histogram [60, 60, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:06:45,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-09-04 13:06:45,047 INFO L427 AbstractCegarLoop]: === Iteration 61 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:06:45,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:06:45,048 INFO L82 PathProgramCache]: Analyzing trace with hash -783714770, now seen corresponding path program 59 times [2020-09-04 13:06:45,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:06:45,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857224884] [2020-09-04 13:06:45,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:06:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:45,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:06:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:45,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:06:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:45,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:45,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:45,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:46,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:46,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:46,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:46,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:46,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:47,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:47,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:47,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:47,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:47,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:48,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:48,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:48,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:48,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:48,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:48,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:49,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:49,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:49,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:49,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:49,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:49,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:49,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:50,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:50,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:50,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:50,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:50,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:50,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:50,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:51,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:51,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:51,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:51,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:51,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:51,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:51,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:51,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:52,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:52,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:52,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:52,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:52,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:52,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:52,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:52,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:52,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:52,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:53,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:53,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:53,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:53,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:53,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:53,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:53,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:53,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:55,831 INFO L134 CoverageAnalysis]: Checked inductivity of 12213 backedges. 0 proven. 5251 refuted. 0 times theorem prover too weak. 6962 trivial. 0 not checked. [2020-09-04 13:06:55,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857224884] [2020-09-04 13:06:55,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043716538] [2020-09-04 13:06:55,831 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:06:56,104 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2020-09-04 13:06:56,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:06:56,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 122 conjunts are in the unsatisfiable core [2020-09-04 13:06:56,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:06:56,415 INFO L134 CoverageAnalysis]: Checked inductivity of 12213 backedges. 0 proven. 5251 refuted. 0 times theorem prover too weak. 6962 trivial. 0 not checked. [2020-09-04 13:06:56,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:06:56,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 66 [2020-09-04 13:06:56,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887477327] [2020-09-04 13:06:56,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 66 states [2020-09-04 13:06:56,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:06:56,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2020-09-04 13:06:56,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1960, Invalid=2330, Unknown=0, NotChecked=0, Total=4290 [2020-09-04 13:06:56,418 INFO L87 Difference]: Start difference. First operand 203 states and 211 transitions. Second operand 66 states. [2020-09-04 13:06:58,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:06:58,664 INFO L93 Difference]: Finished difference Result 212 states and 222 transitions. [2020-09-04 13:06:58,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-09-04 13:06:58,665 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 426 [2020-09-04 13:06:58,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:06:58,667 INFO L225 Difference]: With dead ends: 212 [2020-09-04 13:06:58,667 INFO L226 Difference]: Without dead ends: 208 [2020-09-04 13:06:58,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3659 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=5925, Invalid=10077, Unknown=0, NotChecked=0, Total=16002 [2020-09-04 13:06:58,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-09-04 13:06:58,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 206. [2020-09-04 13:06:58,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-09-04 13:06:58,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 214 transitions. [2020-09-04 13:06:58,674 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 214 transitions. Word has length 426 [2020-09-04 13:06:58,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:06:58,675 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 214 transitions. [2020-09-04 13:06:58,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 66 states. [2020-09-04 13:06:58,675 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 214 transitions. [2020-09-04 13:06:58,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2020-09-04 13:06:58,678 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:06:58,678 INFO L422 BasicCegarLoop]: trace histogram [61, 61, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:06:58,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,60 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:06:58,894 INFO L427 AbstractCegarLoop]: === Iteration 62 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:06:58,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:06:58,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1486211343, now seen corresponding path program 60 times [2020-09-04 13:06:58,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:06:58,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765028843] [2020-09-04 13:06:58,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:06:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:59,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:06:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:59,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:06:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:59,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:59,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:59,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:06:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:06:59,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:00,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:00,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:00,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:00,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:01,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:01,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:01,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:01,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:01,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:01,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:02,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:02,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:02,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:02,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:02,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:02,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:03,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:03,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:03,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:03,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:03,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:03,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:04,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:04,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:04,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:04,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:04,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:04,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:04,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:05,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:05,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:05,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:05,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:05,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:05,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:05,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:05,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:06,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:06,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:06,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:06,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:06,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:06,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:06,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:06,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:06,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:06,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:07,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:07,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:07,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:07,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:07,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:07,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:07,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:07,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:07,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:10,004 INFO L134 CoverageAnalysis]: Checked inductivity of 12630 backedges. 0 proven. 5430 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2020-09-04 13:07:10,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765028843] [2020-09-04 13:07:10,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665097040] [2020-09-04 13:07:10,004 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:07:10,270 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2020-09-04 13:07:10,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:07:10,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 1183 conjuncts, 124 conjunts are in the unsatisfiable core [2020-09-04 13:07:10,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:07:10,603 INFO L134 CoverageAnalysis]: Checked inductivity of 12630 backedges. 0 proven. 5430 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2020-09-04 13:07:10,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:07:10,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 67 [2020-09-04 13:07:10,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24239515] [2020-09-04 13:07:10,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 67 states [2020-09-04 13:07:10,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:07:10,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2020-09-04 13:07:10,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2023, Invalid=2399, Unknown=0, NotChecked=0, Total=4422 [2020-09-04 13:07:10,605 INFO L87 Difference]: Start difference. First operand 206 states and 214 transitions. Second operand 67 states. [2020-09-04 13:07:12,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:07:12,923 INFO L93 Difference]: Finished difference Result 215 states and 225 transitions. [2020-09-04 13:07:12,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-09-04 13:07:12,924 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 433 [2020-09-04 13:07:12,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:07:12,926 INFO L225 Difference]: With dead ends: 215 [2020-09-04 13:07:12,926 INFO L226 Difference]: Without dead ends: 211 [2020-09-04 13:07:12,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3781 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=6115, Invalid=10397, Unknown=0, NotChecked=0, Total=16512 [2020-09-04 13:07:12,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-09-04 13:07:12,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 209. [2020-09-04 13:07:12,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-09-04 13:07:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 217 transitions. [2020-09-04 13:07:12,934 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 217 transitions. Word has length 433 [2020-09-04 13:07:12,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:07:12,934 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 217 transitions. [2020-09-04 13:07:12,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 67 states. [2020-09-04 13:07:12,934 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 217 transitions. [2020-09-04 13:07:12,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2020-09-04 13:07:12,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:07:12,937 INFO L422 BasicCegarLoop]: trace histogram [62, 62, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:07:13,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2020-09-04 13:07:13,152 INFO L427 AbstractCegarLoop]: === Iteration 63 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:07:13,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:07:13,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1191973480, now seen corresponding path program 61 times [2020-09-04 13:07:13,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:07:13,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641504959] [2020-09-04 13:07:13,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:07:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:13,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:07:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:13,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:07:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:13,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:13,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:14,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:14,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:14,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:14,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:14,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:15,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:15,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:15,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:15,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:15,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:15,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:16,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:16,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:16,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:16,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:16,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:17,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:17,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:17,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:17,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:17,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:17,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:18,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:18,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:18,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:18,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:18,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:18,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:18,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:19,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:19,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:19,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:19,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:19,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:19,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:19,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:19,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:20,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:20,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:20,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:20,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:20,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:20,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:20,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:20,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:21,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:21,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:21,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:21,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:21,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:21,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:21,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:21,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:21,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:21,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:22,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:22,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:22,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:22,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:22,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:24,741 INFO L134 CoverageAnalysis]: Checked inductivity of 13054 backedges. 0 proven. 5612 refuted. 0 times theorem prover too weak. 7442 trivial. 0 not checked. [2020-09-04 13:07:24,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641504959] [2020-09-04 13:07:24,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819737783] [2020-09-04 13:07:24,742 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:07:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:24,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 126 conjunts are in the unsatisfiable core [2020-09-04 13:07:24,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:07:25,273 INFO L134 CoverageAnalysis]: Checked inductivity of 13054 backedges. 0 proven. 5612 refuted. 0 times theorem prover too weak. 7442 trivial. 0 not checked. [2020-09-04 13:07:25,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:07:25,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 68 [2020-09-04 13:07:25,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664889294] [2020-09-04 13:07:25,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 68 states [2020-09-04 13:07:25,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:07:25,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2020-09-04 13:07:25,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2087, Invalid=2469, Unknown=0, NotChecked=0, Total=4556 [2020-09-04 13:07:25,275 INFO L87 Difference]: Start difference. First operand 209 states and 217 transitions. Second operand 68 states. [2020-09-04 13:07:27,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:07:27,737 INFO L93 Difference]: Finished difference Result 218 states and 228 transitions. [2020-09-04 13:07:27,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-09-04 13:07:27,737 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 440 [2020-09-04 13:07:27,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:07:27,739 INFO L225 Difference]: With dead ends: 218 [2020-09-04 13:07:27,739 INFO L226 Difference]: Without dead ends: 214 [2020-09-04 13:07:27,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3905 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=6308, Invalid=10722, Unknown=0, NotChecked=0, Total=17030 [2020-09-04 13:07:27,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-09-04 13:07:27,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 212. [2020-09-04 13:07:27,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-04 13:07:27,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 220 transitions. [2020-09-04 13:07:27,747 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 220 transitions. Word has length 440 [2020-09-04 13:07:27,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:07:27,747 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 220 transitions. [2020-09-04 13:07:27,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 68 states. [2020-09-04 13:07:27,747 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 220 transitions. [2020-09-04 13:07:27,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2020-09-04 13:07:27,749 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:07:27,749 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 62, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:07:27,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:07:27,950 INFO L427 AbstractCegarLoop]: === Iteration 64 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:07:27,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:07:27,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1349564409, now seen corresponding path program 62 times [2020-09-04 13:07:27,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:07:27,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279746198] [2020-09-04 13:07:27,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:07:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:28,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:07:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:28,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:07:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:28,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:28,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:28,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:29,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:29,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:29,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:29,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:30,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:30,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:30,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:30,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:30,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:31,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:31,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:31,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:31,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:31,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:32,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:32,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:32,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:32,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:32,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:32,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:32,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:33,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:33,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:33,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:33,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:33,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:33,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:34,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:34,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:34,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:34,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:34,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:34,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:34,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:34,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:34,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:35,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:35,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:35,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:35,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:35,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:35,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:35,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:35,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:36,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:36,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:36,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:36,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:36,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:36,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:36,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:36,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:36,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:37,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:37,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:37,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:37,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:37,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:37,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:37,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 0 proven. 5797 refuted. 0 times theorem prover too weak. 7688 trivial. 0 not checked. [2020-09-04 13:07:40,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279746198] [2020-09-04 13:07:40,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267934038] [2020-09-04 13:07:40,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:07:40,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:07:40,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:07:40,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 128 conjunts are in the unsatisfiable core [2020-09-04 13:07:40,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:07:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 0 proven. 5797 refuted. 0 times theorem prover too weak. 7688 trivial. 0 not checked. [2020-09-04 13:07:40,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:07:40,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 69 [2020-09-04 13:07:40,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212544503] [2020-09-04 13:07:40,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2020-09-04 13:07:40,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:07:40,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2020-09-04 13:07:40,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2152, Invalid=2540, Unknown=0, NotChecked=0, Total=4692 [2020-09-04 13:07:40,696 INFO L87 Difference]: Start difference. First operand 212 states and 220 transitions. Second operand 69 states. [2020-09-04 13:07:43,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:07:43,149 INFO L93 Difference]: Finished difference Result 221 states and 231 transitions. [2020-09-04 13:07:43,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-09-04 13:07:43,150 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 447 [2020-09-04 13:07:43,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:07:43,152 INFO L225 Difference]: With dead ends: 221 [2020-09-04 13:07:43,152 INFO L226 Difference]: Without dead ends: 217 [2020-09-04 13:07:43,155 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4031 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=6504, Invalid=11052, Unknown=0, NotChecked=0, Total=17556 [2020-09-04 13:07:43,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-04 13:07:43,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 215. [2020-09-04 13:07:43,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-09-04 13:07:43,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 223 transitions. [2020-09-04 13:07:43,160 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 223 transitions. Word has length 447 [2020-09-04 13:07:43,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:07:43,161 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 223 transitions. [2020-09-04 13:07:43,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 69 states. [2020-09-04 13:07:43,161 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 223 transitions. [2020-09-04 13:07:43,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2020-09-04 13:07:43,164 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:07:43,164 INFO L422 BasicCegarLoop]: trace histogram [64, 64, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:07:43,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2020-09-04 13:07:43,380 INFO L427 AbstractCegarLoop]: === Iteration 65 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:07:43,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:07:43,381 INFO L82 PathProgramCache]: Analyzing trace with hash 252652546, now seen corresponding path program 63 times [2020-09-04 13:07:43,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:07:43,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738690722] [2020-09-04 13:07:43,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:07:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:43,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:07:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:43,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:07:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:43,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:44,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:44,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:44,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:44,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:45,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:45,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:45,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:45,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:45,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:46,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:46,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:46,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:46,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:46,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:46,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:47,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:47,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:47,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:47,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:47,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:48,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:48,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:48,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:48,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:48,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:48,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:49,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:49,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:49,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:49,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:49,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:49,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:50,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:50,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:50,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:50,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:50,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:50,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:50,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:51,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:51,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:51,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:51,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:51,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:51,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:51,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:51,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:51,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:52,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:52,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:52,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:52,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:52,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:52,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:52,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:52,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:52,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:53,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:53,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:53,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:53,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:53,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:53,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:07:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:56,077 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 0 proven. 5985 refuted. 0 times theorem prover too weak. 7938 trivial. 0 not checked. [2020-09-04 13:07:56,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738690722] [2020-09-04 13:07:56,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550940331] [2020-09-04 13:07:56,078 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:07:56,369 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2020-09-04 13:07:56,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:07:56,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 130 conjunts are in the unsatisfiable core [2020-09-04 13:07:56,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:07:56,819 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 0 proven. 5985 refuted. 0 times theorem prover too weak. 7938 trivial. 0 not checked. [2020-09-04 13:07:56,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:07:56,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 70 [2020-09-04 13:07:56,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539706878] [2020-09-04 13:07:56,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 70 states [2020-09-04 13:07:56,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:07:56,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2020-09-04 13:07:56,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2218, Invalid=2612, Unknown=0, NotChecked=0, Total=4830 [2020-09-04 13:07:56,826 INFO L87 Difference]: Start difference. First operand 215 states and 223 transitions. Second operand 70 states. [2020-09-04 13:07:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:07:59,396 INFO L93 Difference]: Finished difference Result 224 states and 234 transitions. [2020-09-04 13:07:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-09-04 13:07:59,397 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 454 [2020-09-04 13:07:59,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:07:59,398 INFO L225 Difference]: With dead ends: 224 [2020-09-04 13:07:59,398 INFO L226 Difference]: Without dead ends: 220 [2020-09-04 13:07:59,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4159 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=6703, Invalid=11387, Unknown=0, NotChecked=0, Total=18090 [2020-09-04 13:07:59,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-09-04 13:07:59,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2020-09-04 13:07:59,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-04 13:07:59,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 226 transitions. [2020-09-04 13:07:59,406 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 226 transitions. Word has length 454 [2020-09-04 13:07:59,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:07:59,407 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 226 transitions. [2020-09-04 13:07:59,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 70 states. [2020-09-04 13:07:59,407 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 226 transitions. [2020-09-04 13:07:59,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2020-09-04 13:07:59,410 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:07:59,410 INFO L422 BasicCegarLoop]: trace histogram [65, 65, 64, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:07:59,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:07:59,624 INFO L427 AbstractCegarLoop]: === Iteration 66 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:07:59,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:07:59,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1411899933, now seen corresponding path program 64 times [2020-09-04 13:07:59,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:07:59,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192385198] [2020-09-04 13:07:59,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:07:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:59,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:07:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:07:59,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:07:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:00,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:00,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:00,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:00,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:01,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:01,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:01,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:01,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:01,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:02,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:02,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:02,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:02,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:03,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:03,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:03,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:03,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:03,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:03,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:04,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:04,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:04,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:04,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:04,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:05,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:05,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:05,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:05,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:05,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:05,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:05,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:06,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:06,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:06,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:06,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:06,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:06,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:06,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:07,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:07,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:07,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:07,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:07,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:07,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:07,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:07,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:08,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:08,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:08,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:08,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:08,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:08,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:08,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:08,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:08,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:09,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:09,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:09,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:09,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:09,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:09,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:09,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:09,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:09,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:10,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:12,696 INFO L134 CoverageAnalysis]: Checked inductivity of 14368 backedges. 0 proven. 6176 refuted. 0 times theorem prover too weak. 8192 trivial. 0 not checked. [2020-09-04 13:08:12,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192385198] [2020-09-04 13:08:12,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279190550] [2020-09-04 13:08:12,697 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:08:12,912 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:08:12,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:08:12,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 1259 conjuncts, 132 conjunts are in the unsatisfiable core [2020-09-04 13:08:12,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:08:13,276 INFO L134 CoverageAnalysis]: Checked inductivity of 14368 backedges. 0 proven. 6176 refuted. 0 times theorem prover too weak. 8192 trivial. 0 not checked. [2020-09-04 13:08:13,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:08:13,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 71 [2020-09-04 13:08:13,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975349221] [2020-09-04 13:08:13,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2020-09-04 13:08:13,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:08:13,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2020-09-04 13:08:13,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2285, Invalid=2685, Unknown=0, NotChecked=0, Total=4970 [2020-09-04 13:08:13,279 INFO L87 Difference]: Start difference. First operand 218 states and 226 transitions. Second operand 71 states. [2020-09-04 13:08:15,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:08:15,972 INFO L93 Difference]: Finished difference Result 227 states and 237 transitions. [2020-09-04 13:08:15,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-09-04 13:08:15,973 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 461 [2020-09-04 13:08:15,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:08:15,975 INFO L225 Difference]: With dead ends: 227 [2020-09-04 13:08:15,975 INFO L226 Difference]: Without dead ends: 223 [2020-09-04 13:08:15,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4289 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=6905, Invalid=11727, Unknown=0, NotChecked=0, Total=18632 [2020-09-04 13:08:15,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-09-04 13:08:15,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 221. [2020-09-04 13:08:15,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-09-04 13:08:15,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 229 transitions. [2020-09-04 13:08:15,982 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 229 transitions. Word has length 461 [2020-09-04 13:08:15,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:08:15,982 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 229 transitions. [2020-09-04 13:08:15,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 71 states. [2020-09-04 13:08:15,982 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 229 transitions. [2020-09-04 13:08:15,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2020-09-04 13:08:15,985 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:08:15,985 INFO L422 BasicCegarLoop]: trace histogram [66, 66, 65, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:08:16,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2020-09-04 13:08:16,186 INFO L427 AbstractCegarLoop]: === Iteration 67 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:08:16,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:08:16,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1911198060, now seen corresponding path program 65 times [2020-09-04 13:08:16,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:08:16,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451910732] [2020-09-04 13:08:16,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:08:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:16,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:08:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:16,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:08:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:16,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:16,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:17,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:17,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:17,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:17,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:18,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:18,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:18,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:18,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:19,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:19,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:19,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:19,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:19,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:20,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:20,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:20,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:20,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:20,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:21,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:21,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:21,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:21,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:21,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:21,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:22,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:22,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:22,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:22,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:22,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:22,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:23,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:23,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:23,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:23,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:23,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:23,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:23,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:24,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:24,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:24,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:24,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:24,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:24,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:24,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:24,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:25,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:25,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:25,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:25,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:25,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:25,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:25,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:25,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:25,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:26,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:26,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:26,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:26,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:26,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:26,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:26,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:26,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:26,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:29,765 INFO L134 CoverageAnalysis]: Checked inductivity of 14820 backedges. 0 proven. 6370 refuted. 0 times theorem prover too weak. 8450 trivial. 0 not checked. [2020-09-04 13:08:29,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451910732] [2020-09-04 13:08:29,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003441112] [2020-09-04 13:08:29,766 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:08:30,068 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2020-09-04 13:08:30,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:08:30,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1278 conjuncts, 134 conjunts are in the unsatisfiable core [2020-09-04 13:08:30,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:08:30,436 INFO L134 CoverageAnalysis]: Checked inductivity of 14820 backedges. 0 proven. 6370 refuted. 0 times theorem prover too weak. 8450 trivial. 0 not checked. [2020-09-04 13:08:30,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:08:30,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 72 [2020-09-04 13:08:30,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009426165] [2020-09-04 13:08:30,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 72 states [2020-09-04 13:08:30,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:08:30,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2020-09-04 13:08:30,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2353, Invalid=2759, Unknown=0, NotChecked=0, Total=5112 [2020-09-04 13:08:30,438 INFO L87 Difference]: Start difference. First operand 221 states and 229 transitions. Second operand 72 states. [2020-09-04 13:08:33,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:08:33,234 INFO L93 Difference]: Finished difference Result 230 states and 240 transitions. [2020-09-04 13:08:33,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-09-04 13:08:33,239 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 468 [2020-09-04 13:08:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:08:33,240 INFO L225 Difference]: With dead ends: 230 [2020-09-04 13:08:33,241 INFO L226 Difference]: Without dead ends: 226 [2020-09-04 13:08:33,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 737 GetRequests, 600 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4421 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=7110, Invalid=12072, Unknown=0, NotChecked=0, Total=19182 [2020-09-04 13:08:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-04 13:08:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 224. [2020-09-04 13:08:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-09-04 13:08:33,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 232 transitions. [2020-09-04 13:08:33,248 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 232 transitions. Word has length 468 [2020-09-04 13:08:33,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:08:33,249 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 232 transitions. [2020-09-04 13:08:33,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 72 states. [2020-09-04 13:08:33,249 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 232 transitions. [2020-09-04 13:08:33,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2020-09-04 13:08:33,252 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:08:33,252 INFO L422 BasicCegarLoop]: trace histogram [67, 67, 66, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:08:33,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2020-09-04 13:08:33,468 INFO L427 AbstractCegarLoop]: === Iteration 68 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:08:33,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:08:33,469 INFO L82 PathProgramCache]: Analyzing trace with hash -495672013, now seen corresponding path program 66 times [2020-09-04 13:08:33,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:08:33,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688375168] [2020-09-04 13:08:33,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:08:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:33,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:08:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:33,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:08:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:34,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:34,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:34,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:34,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:35,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:35,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:35,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:35,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:36,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:36,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:36,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:36,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:36,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:37,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:37,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:37,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:37,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:37,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:38,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:38,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:38,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:38,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:38,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:39,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:39,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:39,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:39,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:39,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:39,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:40,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:40,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:40,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:40,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:40,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:40,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:41,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:41,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:41,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:41,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:41,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:41,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:41,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:42,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:42,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:42,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:42,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:42,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:42,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:42,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:42,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:43,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:43,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:43,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:43,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:43,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:43,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:43,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:43,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:44,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:44,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:44,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:44,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:44,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:44,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:44,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:44,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:44,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:44,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:44,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 15279 backedges. 0 proven. 6567 refuted. 0 times theorem prover too weak. 8712 trivial. 0 not checked. [2020-09-04 13:08:48,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688375168] [2020-09-04 13:08:48,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519479779] [2020-09-04 13:08:48,001 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:08:48,316 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2020-09-04 13:08:48,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:08:48,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 136 conjunts are in the unsatisfiable core [2020-09-04 13:08:48,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:08:48,722 INFO L134 CoverageAnalysis]: Checked inductivity of 15279 backedges. 0 proven. 6567 refuted. 0 times theorem prover too weak. 8712 trivial. 0 not checked. [2020-09-04 13:08:48,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:08:48,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71] total 73 [2020-09-04 13:08:48,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720731846] [2020-09-04 13:08:48,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 73 states [2020-09-04 13:08:48,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:08:48,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2020-09-04 13:08:48,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2422, Invalid=2834, Unknown=0, NotChecked=0, Total=5256 [2020-09-04 13:08:48,724 INFO L87 Difference]: Start difference. First operand 224 states and 232 transitions. Second operand 73 states. [2020-09-04 13:08:51,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:08:51,649 INFO L93 Difference]: Finished difference Result 233 states and 243 transitions. [2020-09-04 13:08:51,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-09-04 13:08:51,650 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 475 [2020-09-04 13:08:51,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:08:51,652 INFO L225 Difference]: With dead ends: 233 [2020-09-04 13:08:51,653 INFO L226 Difference]: Without dead ends: 229 [2020-09-04 13:08:51,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4555 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=7318, Invalid=12422, Unknown=0, NotChecked=0, Total=19740 [2020-09-04 13:08:51,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-09-04 13:08:51,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2020-09-04 13:08:51,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-09-04 13:08:51,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 235 transitions. [2020-09-04 13:08:51,661 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 235 transitions. Word has length 475 [2020-09-04 13:08:51,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:08:51,662 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 235 transitions. [2020-09-04 13:08:51,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 73 states. [2020-09-04 13:08:51,662 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 235 transitions. [2020-09-04 13:08:51,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2020-09-04 13:08:51,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:08:51,664 INFO L422 BasicCegarLoop]: trace histogram [68, 68, 67, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:08:51,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2020-09-04 13:08:51,865 INFO L427 AbstractCegarLoop]: === Iteration 69 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:08:51,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:08:51,866 INFO L82 PathProgramCache]: Analyzing trace with hash -785023530, now seen corresponding path program 67 times [2020-09-04 13:08:51,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:08:51,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345210152] [2020-09-04 13:08:51,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:08:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:52,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:08:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:52,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:08:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:52,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:52,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:52,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:53,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:53,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:53,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:54,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:54,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:54,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:54,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:55,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:55,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:55,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:55,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:56,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:56,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:56,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:56,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:56,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:57,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:57,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:57,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:57,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:57,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:58,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:58,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:58,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:58,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:58,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:58,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:59,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:59,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:59,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:59,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:08:59,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:08:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:00,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:00,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:00,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:00,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:00,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:00,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:01,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:01,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:01,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:01,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:01,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:01,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:01,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:02,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:02,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:02,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:02,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:02,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:02,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:02,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:02,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:03,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:03,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:03,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:03,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:03,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:03,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:03,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:03,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:03,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:04,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:04,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 0 proven. 6767 refuted. 0 times theorem prover too weak. 8978 trivial. 0 not checked. [2020-09-04 13:09:07,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345210152] [2020-09-04 13:09:07,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113075407] [2020-09-04 13:09:07,273 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:09:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:07,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1316 conjuncts, 138 conjunts are in the unsatisfiable core [2020-09-04 13:09:07,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:09:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 0 proven. 6767 refuted. 0 times theorem prover too weak. 8978 trivial. 0 not checked. [2020-09-04 13:09:07,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:09:07,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 72] total 74 [2020-09-04 13:09:07,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280056226] [2020-09-04 13:09:07,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 74 states [2020-09-04 13:09:07,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:09:07,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2020-09-04 13:09:07,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2492, Invalid=2910, Unknown=0, NotChecked=0, Total=5402 [2020-09-04 13:09:07,920 INFO L87 Difference]: Start difference. First operand 227 states and 235 transitions. Second operand 74 states. [2020-09-04 13:09:10,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:09:10,849 INFO L93 Difference]: Finished difference Result 236 states and 246 transitions. [2020-09-04 13:09:10,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-09-04 13:09:10,850 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 482 [2020-09-04 13:09:10,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:09:10,852 INFO L225 Difference]: With dead ends: 236 [2020-09-04 13:09:10,852 INFO L226 Difference]: Without dead ends: 232 [2020-09-04 13:09:10,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4691 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=7529, Invalid=12777, Unknown=0, NotChecked=0, Total=20306 [2020-09-04 13:09:10,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-09-04 13:09:10,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2020-09-04 13:09:10,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-04 13:09:10,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 238 transitions. [2020-09-04 13:09:10,859 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 238 transitions. Word has length 482 [2020-09-04 13:09:10,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:09:10,859 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 238 transitions. [2020-09-04 13:09:10,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 74 states. [2020-09-04 13:09:10,860 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 238 transitions. [2020-09-04 13:09:10,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2020-09-04 13:09:10,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:09:10,863 INFO L422 BasicCegarLoop]: trace histogram [69, 69, 68, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:09:11,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:09:11,071 INFO L427 AbstractCegarLoop]: === Iteration 70 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:09:11,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:09:11,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1700147529, now seen corresponding path program 68 times [2020-09-04 13:09:11,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:09:11,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14276653] [2020-09-04 13:09:11,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:09:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:11,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:09:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:11,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:09:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:11,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:11,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:12,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:12,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:12,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:13,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:13,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:13,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:14,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:14,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:14,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:14,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:15,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:15,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:15,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:15,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:15,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:16,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:16,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:16,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:16,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:17,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:17,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:17,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:17,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:17,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:18,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:18,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:18,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:18,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:18,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:19,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:19,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:19,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:19,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:19,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:19,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:20,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:20,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:20,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:20,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:20,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:20,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:20,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:21,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:21,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:21,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:21,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:21,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:21,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:21,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:22,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:22,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:22,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:22,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:22,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:22,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:22,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:22,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:23,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:23,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:23,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:23,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:23,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:23,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:23,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:23,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:23,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:27,140 INFO L134 CoverageAnalysis]: Checked inductivity of 16218 backedges. 0 proven. 6970 refuted. 0 times theorem prover too weak. 9248 trivial. 0 not checked. [2020-09-04 13:09:27,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14276653] [2020-09-04 13:09:27,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037117064] [2020-09-04 13:09:27,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:09:27,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:09:27,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:09:27,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 1335 conjuncts, 140 conjunts are in the unsatisfiable core [2020-09-04 13:09:27,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:09:27,826 INFO L134 CoverageAnalysis]: Checked inductivity of 16218 backedges. 0 proven. 6970 refuted. 0 times theorem prover too weak. 9248 trivial. 0 not checked. [2020-09-04 13:09:27,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:09:27,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73] total 75 [2020-09-04 13:09:27,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110709005] [2020-09-04 13:09:27,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 75 states [2020-09-04 13:09:27,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:09:27,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2020-09-04 13:09:27,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2563, Invalid=2987, Unknown=0, NotChecked=0, Total=5550 [2020-09-04 13:09:27,828 INFO L87 Difference]: Start difference. First operand 230 states and 238 transitions. Second operand 75 states. [2020-09-04 13:09:30,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:09:30,904 INFO L93 Difference]: Finished difference Result 239 states and 249 transitions. [2020-09-04 13:09:30,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-09-04 13:09:30,905 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 489 [2020-09-04 13:09:30,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:09:30,907 INFO L225 Difference]: With dead ends: 239 [2020-09-04 13:09:30,907 INFO L226 Difference]: Without dead ends: 235 [2020-09-04 13:09:30,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 770 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4829 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=7743, Invalid=13137, Unknown=0, NotChecked=0, Total=20880 [2020-09-04 13:09:30,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-09-04 13:09:30,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2020-09-04 13:09:30,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-09-04 13:09:30,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 241 transitions. [2020-09-04 13:09:30,914 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 241 transitions. Word has length 489 [2020-09-04 13:09:30,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:09:30,914 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 241 transitions. [2020-09-04 13:09:30,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 75 states. [2020-09-04 13:09:30,915 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 241 transitions. [2020-09-04 13:09:30,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2020-09-04 13:09:30,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:09:30,917 INFO L422 BasicCegarLoop]: trace histogram [70, 70, 69, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:09:31,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2020-09-04 13:09:31,118 INFO L427 AbstractCegarLoop]: === Iteration 71 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:09:31,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:09:31,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1879092928, now seen corresponding path program 69 times [2020-09-04 13:09:31,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:09:31,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613428302] [2020-09-04 13:09:31,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:09:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:31,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:09:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:31,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:09:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:31,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:31,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:32,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:32,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:32,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:33,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:33,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:33,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:33,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:34,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:34,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:34,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:34,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:35,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:35,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:35,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:35,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:35,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:36,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:36,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:36,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:36,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:36,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:37,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:37,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:37,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:37,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:37,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:38,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:38,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:38,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:38,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:38,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:39,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:39,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:39,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:39,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:39,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:39,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:40,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:40,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:40,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:40,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:40,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:40,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:40,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:41,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:41,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:41,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:41,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:41,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:41,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:41,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:41,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:42,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:42,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:42,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:42,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:42,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:42,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:42,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:42,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:42,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:43,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:43,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:43,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:43,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:43,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:43,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:43,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:47,321 INFO L134 CoverageAnalysis]: Checked inductivity of 16698 backedges. 0 proven. 7176 refuted. 0 times theorem prover too weak. 9522 trivial. 0 not checked. [2020-09-04 13:09:47,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613428302] [2020-09-04 13:09:47,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034479041] [2020-09-04 13:09:47,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:09:47,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 70 check-sat command(s) [2020-09-04 13:09:47,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:09:47,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 142 conjunts are in the unsatisfiable core [2020-09-04 13:09:47,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:09:48,120 INFO L134 CoverageAnalysis]: Checked inductivity of 16698 backedges. 0 proven. 7176 refuted. 0 times theorem prover too weak. 9522 trivial. 0 not checked. [2020-09-04 13:09:48,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:09:48,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 76 [2020-09-04 13:09:48,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141114506] [2020-09-04 13:09:48,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 76 states [2020-09-04 13:09:48,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:09:48,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2020-09-04 13:09:48,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2635, Invalid=3065, Unknown=0, NotChecked=0, Total=5700 [2020-09-04 13:09:48,123 INFO L87 Difference]: Start difference. First operand 233 states and 241 transitions. Second operand 76 states. [2020-09-04 13:09:51,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:09:51,175 INFO L93 Difference]: Finished difference Result 242 states and 252 transitions. [2020-09-04 13:09:51,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-09-04 13:09:51,176 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 496 [2020-09-04 13:09:51,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:09:51,177 INFO L225 Difference]: With dead ends: 242 [2020-09-04 13:09:51,177 INFO L226 Difference]: Without dead ends: 238 [2020-09-04 13:09:51,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 636 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4969 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=7960, Invalid=13502, Unknown=0, NotChecked=0, Total=21462 [2020-09-04 13:09:51,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-04 13:09:51,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 236. [2020-09-04 13:09:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-09-04 13:09:51,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 244 transitions. [2020-09-04 13:09:51,185 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 244 transitions. Word has length 496 [2020-09-04 13:09:51,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:09:51,185 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 244 transitions. [2020-09-04 13:09:51,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 76 states. [2020-09-04 13:09:51,185 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 244 transitions. [2020-09-04 13:09:51,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2020-09-04 13:09:51,189 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:09:51,189 INFO L422 BasicCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:09:51,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,70 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:09:51,402 INFO L427 AbstractCegarLoop]: === Iteration 72 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:09:51,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:09:51,403 INFO L82 PathProgramCache]: Analyzing trace with hash 55387743, now seen corresponding path program 70 times [2020-09-04 13:09:51,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:09:51,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846895840] [2020-09-04 13:09:51,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:09:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:51,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:09:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:51,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:09:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:52,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:52,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:52,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:52,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:53,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:53,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:53,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:54,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:54,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:54,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:54,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:55,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:55,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:55,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:55,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:56,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:56,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:56,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:56,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:56,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:57,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:57,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:57,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:57,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:57,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:58,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:58,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:58,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:58,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:59,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:59,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:59,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:59,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:59,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:09:59,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:09:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:00,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:00,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:00,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:00,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:00,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:00,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:01,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:01,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:01,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:01,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:01,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:01,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:01,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:02,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:02,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:02,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:02,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:02,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:02,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:02,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:02,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:03,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:03,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:03,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:03,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:03,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:03,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:03,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:03,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:04,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:04,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:04,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:04,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:04,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:04,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:04,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:08,471 INFO L134 CoverageAnalysis]: Checked inductivity of 17185 backedges. 0 proven. 7385 refuted. 0 times theorem prover too weak. 9800 trivial. 0 not checked. [2020-09-04 13:10:08,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846895840] [2020-09-04 13:10:08,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279357629] [2020-09-04 13:10:08,472 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:10:08,702 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:10:08,702 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:10:08,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 144 conjunts are in the unsatisfiable core [2020-09-04 13:10:08,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:10:09,301 INFO L134 CoverageAnalysis]: Checked inductivity of 17185 backedges. 0 proven. 7385 refuted. 0 times theorem prover too weak. 9800 trivial. 0 not checked. [2020-09-04 13:10:09,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:10:09,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75] total 77 [2020-09-04 13:10:09,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467864850] [2020-09-04 13:10:09,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2020-09-04 13:10:09,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:10:09,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2020-09-04 13:10:09,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2708, Invalid=3144, Unknown=0, NotChecked=0, Total=5852 [2020-09-04 13:10:09,304 INFO L87 Difference]: Start difference. First operand 236 states and 244 transitions. Second operand 77 states. [2020-09-04 13:10:12,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:10:12,402 INFO L93 Difference]: Finished difference Result 245 states and 255 transitions. [2020-09-04 13:10:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-09-04 13:10:12,403 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 503 [2020-09-04 13:10:12,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:10:12,405 INFO L225 Difference]: With dead ends: 245 [2020-09-04 13:10:12,405 INFO L226 Difference]: Without dead ends: 241 [2020-09-04 13:10:12,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 645 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5111 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=8180, Invalid=13872, Unknown=0, NotChecked=0, Total=22052 [2020-09-04 13:10:12,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-09-04 13:10:12,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 239. [2020-09-04 13:10:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-04 13:10:12,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 247 transitions. [2020-09-04 13:10:12,412 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 247 transitions. Word has length 503 [2020-09-04 13:10:12,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:10:12,412 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 247 transitions. [2020-09-04 13:10:12,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 77 states. [2020-09-04 13:10:12,413 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 247 transitions. [2020-09-04 13:10:12,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2020-09-04 13:10:12,417 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:10:12,417 INFO L422 BasicCegarLoop]: trace histogram [72, 72, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:10:12,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2020-09-04 13:10:12,630 INFO L427 AbstractCegarLoop]: === Iteration 73 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:10:12,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:10:12,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1497928790, now seen corresponding path program 71 times [2020-09-04 13:10:12,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:10:12,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112889088] [2020-09-04 13:10:12,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:10:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:12,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:10:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:12,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:10:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:13,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:13,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:13,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:14,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:14,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:14,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:15,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:15,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:15,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:15,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:16,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:16,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:16,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:16,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:17,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:17,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:17,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:17,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:18,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:18,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:18,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:18,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:18,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:19,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:19,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:19,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:19,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:19,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:20,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:20,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:20,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:20,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:20,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:20,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:21,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:21,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:21,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:21,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:21,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:21,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:22,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:22,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:22,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:22,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:22,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:22,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:23,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:23,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:23,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:23,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:23,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:23,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:23,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:24,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:24,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:24,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:24,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:24,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:24,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:24,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:24,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:25,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:25,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:25,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:25,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:25,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:25,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:25,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:25,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:26,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:26,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:26,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:30,142 INFO L134 CoverageAnalysis]: Checked inductivity of 17679 backedges. 0 proven. 7597 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2020-09-04 13:10:30,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112889088] [2020-09-04 13:10:30,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437452074] [2020-09-04 13:10:30,143 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:10:30,485 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 72 check-sat command(s) [2020-09-04 13:10:30,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:10:30,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 146 conjunts are in the unsatisfiable core [2020-09-04 13:10:30,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:10:30,912 INFO L134 CoverageAnalysis]: Checked inductivity of 17679 backedges. 0 proven. 7597 refuted. 0 times theorem prover too weak. 10082 trivial. 0 not checked. [2020-09-04 13:10:30,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:10:30,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 78 [2020-09-04 13:10:30,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036704721] [2020-09-04 13:10:30,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 78 states [2020-09-04 13:10:30,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:10:30,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2020-09-04 13:10:30,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2782, Invalid=3224, Unknown=0, NotChecked=0, Total=6006 [2020-09-04 13:10:30,915 INFO L87 Difference]: Start difference. First operand 239 states and 247 transitions. Second operand 78 states. [2020-09-04 13:10:34,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:10:34,294 INFO L93 Difference]: Finished difference Result 248 states and 258 transitions. [2020-09-04 13:10:34,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-09-04 13:10:34,295 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 510 [2020-09-04 13:10:34,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:10:34,297 INFO L225 Difference]: With dead ends: 248 [2020-09-04 13:10:34,297 INFO L226 Difference]: Without dead ends: 244 [2020-09-04 13:10:34,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 803 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5255 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=8403, Invalid=14247, Unknown=0, NotChecked=0, Total=22650 [2020-09-04 13:10:34,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-09-04 13:10:34,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 242. [2020-09-04 13:10:34,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-09-04 13:10:34,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 250 transitions. [2020-09-04 13:10:34,304 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 250 transitions. Word has length 510 [2020-09-04 13:10:34,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:10:34,304 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 250 transitions. [2020-09-04 13:10:34,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 78 states. [2020-09-04 13:10:34,305 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 250 transitions. [2020-09-04 13:10:34,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2020-09-04 13:10:34,307 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:10:34,307 INFO L422 BasicCegarLoop]: trace histogram [73, 73, 72, 72, 72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:10:34,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:10:34,508 INFO L427 AbstractCegarLoop]: === Iteration 74 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:10:34,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:10:34,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1551508597, now seen corresponding path program 72 times [2020-09-04 13:10:34,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:10:34,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315167088] [2020-09-04 13:10:34,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:10:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:34,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:10:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:34,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:10:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:35,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:35,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:35,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:36,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:36,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:36,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:36,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:37,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:37,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:37,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:38,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:38,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:38,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:38,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:39,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:39,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:39,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:39,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:40,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:40,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:40,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:40,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:40,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:41,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:41,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:41,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:41,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:41,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:42,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:42,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:42,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:42,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:43,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:43,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:43,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:43,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:43,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:43,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:44,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:44,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:44,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:44,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:44,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:45,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:45,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:45,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:45,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:45,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:45,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:46,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:46,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:46,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:46,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:46,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:46,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:46,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:47,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:47,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:47,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:47,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:47,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:47,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:47,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:47,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:47,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:48,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:48,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:48,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:48,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:48,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:48,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:48,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:48,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:52,651 INFO L134 CoverageAnalysis]: Checked inductivity of 18180 backedges. 0 proven. 7812 refuted. 0 times theorem prover too weak. 10368 trivial. 0 not checked. [2020-09-04 13:10:52,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315167088] [2020-09-04 13:10:52,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890778485] [2020-09-04 13:10:52,652 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:10:53,001 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 73 check-sat command(s) [2020-09-04 13:10:53,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:10:53,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 148 conjunts are in the unsatisfiable core [2020-09-04 13:10:53,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:10:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 18180 backedges. 0 proven. 7812 refuted. 0 times theorem prover too weak. 10368 trivial. 0 not checked. [2020-09-04 13:10:53,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:10:53,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77] total 79 [2020-09-04 13:10:53,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648166175] [2020-09-04 13:10:53,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 79 states [2020-09-04 13:10:53,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:10:53,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2020-09-04 13:10:53,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2857, Invalid=3305, Unknown=0, NotChecked=0, Total=6162 [2020-09-04 13:10:53,444 INFO L87 Difference]: Start difference. First operand 242 states and 250 transitions. Second operand 79 states. [2020-09-04 13:10:56,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:10:56,815 INFO L93 Difference]: Finished difference Result 251 states and 261 transitions. [2020-09-04 13:10:56,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-09-04 13:10:56,816 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 517 [2020-09-04 13:10:56,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:10:56,817 INFO L225 Difference]: With dead ends: 251 [2020-09-04 13:10:56,818 INFO L226 Difference]: Without dead ends: 247 [2020-09-04 13:10:56,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 663 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5401 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=8629, Invalid=14627, Unknown=0, NotChecked=0, Total=23256 [2020-09-04 13:10:56,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-09-04 13:10:56,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 245. [2020-09-04 13:10:56,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-04 13:10:56,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 253 transitions. [2020-09-04 13:10:56,828 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 253 transitions. Word has length 517 [2020-09-04 13:10:56,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:10:56,828 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 253 transitions. [2020-09-04 13:10:56,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 79 states. [2020-09-04 13:10:56,828 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 253 transitions. [2020-09-04 13:10:56,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2020-09-04 13:10:56,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:10:56,833 INFO L422 BasicCegarLoop]: trace histogram [74, 74, 73, 73, 73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:10:57,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:10:57,039 INFO L427 AbstractCegarLoop]: === Iteration 75 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:10:57,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:10:57,039 INFO L82 PathProgramCache]: Analyzing trace with hash -986895084, now seen corresponding path program 73 times [2020-09-04 13:10:57,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:10:57,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107911970] [2020-09-04 13:10:57,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:10:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:57,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:10:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:57,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:10:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:57,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:58,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:58,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:58,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:59,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:59,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:10:59,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:10:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:00,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:00,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:00,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:00,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:01,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:01,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:01,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:02,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:02,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:02,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:02,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:03,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:03,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:03,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:04,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:04,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:04,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:04,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:05,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:05,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:05,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:05,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:05,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:05,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:06,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:06,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:06,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:06,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:07,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:07,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:07,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:07,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:07,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:08,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:08,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:08,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:08,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:08,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:08,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:09,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:09,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:09,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:09,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:09,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:09,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:10,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:10,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:10,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:10,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:10,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:10,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:11,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:11,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:11,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:11,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:11,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:11,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:11,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:12,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:12,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:12,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:12,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:12,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:12,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:12,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:12,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 18688 backedges. 0 proven. 8030 refuted. 0 times theorem prover too weak. 10658 trivial. 0 not checked. [2020-09-04 13:11:17,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107911970] [2020-09-04 13:11:17,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264995474] [2020-09-04 13:11:17,774 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:11:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:18,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 150 conjunts are in the unsatisfiable core [2020-09-04 13:11:18,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:11:18,511 INFO L134 CoverageAnalysis]: Checked inductivity of 18688 backedges. 0 proven. 8030 refuted. 0 times theorem prover too weak. 10658 trivial. 0 not checked. [2020-09-04 13:11:18,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:11:18,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 80 [2020-09-04 13:11:18,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265259450] [2020-09-04 13:11:18,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 80 states [2020-09-04 13:11:18,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:11:18,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2020-09-04 13:11:18,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2933, Invalid=3387, Unknown=0, NotChecked=0, Total=6320 [2020-09-04 13:11:18,514 INFO L87 Difference]: Start difference. First operand 245 states and 253 transitions. Second operand 80 states. [2020-09-04 13:11:22,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:11:22,058 INFO L93 Difference]: Finished difference Result 254 states and 264 transitions. [2020-09-04 13:11:22,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-09-04 13:11:22,059 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 524 [2020-09-04 13:11:22,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:11:22,061 INFO L225 Difference]: With dead ends: 254 [2020-09-04 13:11:22,061 INFO L226 Difference]: Without dead ends: 250 [2020-09-04 13:11:22,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 825 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5549 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=8858, Invalid=15012, Unknown=0, NotChecked=0, Total=23870 [2020-09-04 13:11:22,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-09-04 13:11:22,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2020-09-04 13:11:22,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-09-04 13:11:22,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 256 transitions. [2020-09-04 13:11:22,074 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 256 transitions. Word has length 524 [2020-09-04 13:11:22,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:11:22,075 INFO L479 AbstractCegarLoop]: Abstraction has 248 states and 256 transitions. [2020-09-04 13:11:22,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 80 states. [2020-09-04 13:11:22,075 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 256 transitions. [2020-09-04 13:11:22,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2020-09-04 13:11:22,080 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:11:22,080 INFO L422 BasicCegarLoop]: trace histogram [75, 75, 74, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:11:22,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:11:22,294 INFO L427 AbstractCegarLoop]: === Iteration 76 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:11:22,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:11:22,295 INFO L82 PathProgramCache]: Analyzing trace with hash -392311925, now seen corresponding path program 74 times [2020-09-04 13:11:22,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:11:22,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660031067] [2020-09-04 13:11:22,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:11:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:22,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:11:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:22,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:11:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:23,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:23,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:23,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:24,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:24,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:24,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:24,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:25,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:25,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:25,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:25,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:26,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:26,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:26,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:27,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:27,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:27,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:27,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:28,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:28,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:28,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:28,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:29,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:29,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:29,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:30,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:30,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:30,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:30,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:30,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:31,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:31,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:31,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:31,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:32,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:32,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:32,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:32,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:32,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:33,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:33,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:33,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:33,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:33,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:34,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:34,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:34,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:34,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:34,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:35,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:35,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:35,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:35,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:35,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:36,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:36,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:36,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:36,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:36,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:36,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:36,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:37,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:37,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:37,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:37,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:37,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:37,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:37,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:38,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:38,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:38,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:38,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:38,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:38,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:38,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:38,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:43,108 INFO L134 CoverageAnalysis]: Checked inductivity of 19203 backedges. 0 proven. 8251 refuted. 0 times theorem prover too weak. 10952 trivial. 0 not checked. [2020-09-04 13:11:43,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660031067] [2020-09-04 13:11:43,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436687665] [2020-09-04 13:11:43,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:11:43,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:11:43,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:11:43,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 152 conjunts are in the unsatisfiable core [2020-09-04 13:11:43,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:11:43,800 INFO L134 CoverageAnalysis]: Checked inductivity of 19203 backedges. 0 proven. 8251 refuted. 0 times theorem prover too weak. 10952 trivial. 0 not checked. [2020-09-04 13:11:43,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:11:43,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79] total 81 [2020-09-04 13:11:43,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130511532] [2020-09-04 13:11:43,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 81 states [2020-09-04 13:11:43,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:11:43,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2020-09-04 13:11:43,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3010, Invalid=3470, Unknown=0, NotChecked=0, Total=6480 [2020-09-04 13:11:43,802 INFO L87 Difference]: Start difference. First operand 248 states and 256 transitions. Second operand 81 states. [2020-09-04 13:11:47,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:11:47,489 INFO L93 Difference]: Finished difference Result 257 states and 267 transitions. [2020-09-04 13:11:47,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2020-09-04 13:11:47,490 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 531 [2020-09-04 13:11:47,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:11:47,492 INFO L225 Difference]: With dead ends: 257 [2020-09-04 13:11:47,492 INFO L226 Difference]: Without dead ends: 253 [2020-09-04 13:11:47,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 681 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5699 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=9090, Invalid=15402, Unknown=0, NotChecked=0, Total=24492 [2020-09-04 13:11:47,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-09-04 13:11:47,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 251. [2020-09-04 13:11:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-09-04 13:11:47,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 259 transitions. [2020-09-04 13:11:47,501 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 259 transitions. Word has length 531 [2020-09-04 13:11:47,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:11:47,501 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 259 transitions. [2020-09-04 13:11:47,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 81 states. [2020-09-04 13:11:47,502 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 259 transitions. [2020-09-04 13:11:47,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2020-09-04 13:11:47,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:11:47,505 INFO L422 BasicCegarLoop]: trace histogram [76, 76, 75, 75, 75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:11:47,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2020-09-04 13:11:47,720 INFO L427 AbstractCegarLoop]: === Iteration 77 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:11:47,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:11:47,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1955591550, now seen corresponding path program 75 times [2020-09-04 13:11:47,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:11:47,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872747599] [2020-09-04 13:11:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:11:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:48,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:11:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:48,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:11:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:48,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:48,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:49,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:49,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:49,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:50,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:50,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:50,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:50,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:51,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:51,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:51,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:52,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:52,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:52,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:53,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:53,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:53,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:53,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:54,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:54,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:54,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:54,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:55,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:55,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:55,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:55,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:55,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:56,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:56,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:56,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:56,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:56,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:57,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:57,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:57,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:57,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:57,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:58,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:58,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:58,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:58,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:59,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:59,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:59,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:59,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:59,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:59,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:59,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:11:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:11:59,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:00,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:00,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:00,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:00,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:00,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:00,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:01,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:01,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:01,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:01,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:01,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:01,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:01,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:02,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:02,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:02,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:02,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:02,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:02,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:02,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:03,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:03,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:03,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:03,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:03,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:03,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:07,940 INFO L134 CoverageAnalysis]: Checked inductivity of 19725 backedges. 0 proven. 8475 refuted. 0 times theorem prover too weak. 11250 trivial. 0 not checked. [2020-09-04 13:12:07,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872747599] [2020-09-04 13:12:07,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314814708] [2020-09-04 13:12:07,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:12:08,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 76 check-sat command(s) [2020-09-04 13:12:08,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:12:08,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 154 conjunts are in the unsatisfiable core [2020-09-04 13:12:08,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:12:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 19725 backedges. 0 proven. 8475 refuted. 0 times theorem prover too weak. 11250 trivial. 0 not checked. [2020-09-04 13:12:08,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:12:08,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80] total 82 [2020-09-04 13:12:08,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969460106] [2020-09-04 13:12:08,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 82 states [2020-09-04 13:12:08,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:12:08,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2020-09-04 13:12:08,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3088, Invalid=3554, Unknown=0, NotChecked=0, Total=6642 [2020-09-04 13:12:08,793 INFO L87 Difference]: Start difference. First operand 251 states and 259 transitions. Second operand 82 states. [2020-09-04 13:12:12,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:12:12,672 INFO L93 Difference]: Finished difference Result 260 states and 270 transitions. [2020-09-04 13:12:12,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2020-09-04 13:12:12,673 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 538 [2020-09-04 13:12:12,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:12:12,675 INFO L225 Difference]: With dead ends: 260 [2020-09-04 13:12:12,675 INFO L226 Difference]: Without dead ends: 256 [2020-09-04 13:12:12,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5851 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=9325, Invalid=15797, Unknown=0, NotChecked=0, Total=25122 [2020-09-04 13:12:12,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-09-04 13:12:12,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 254. [2020-09-04 13:12:12,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-04 13:12:12,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 262 transitions. [2020-09-04 13:12:12,682 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 262 transitions. Word has length 538 [2020-09-04 13:12:12,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:12:12,683 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 262 transitions. [2020-09-04 13:12:12,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 82 states. [2020-09-04 13:12:12,683 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 262 transitions. [2020-09-04 13:12:12,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2020-09-04 13:12:12,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:12:12,687 INFO L422 BasicCegarLoop]: trace histogram [77, 77, 76, 76, 76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:12:12,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:12:12,902 INFO L427 AbstractCegarLoop]: === Iteration 78 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:12:12,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:12:12,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1427684257, now seen corresponding path program 76 times [2020-09-04 13:12:12,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:12:12,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095292908] [2020-09-04 13:12:12,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:12:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:13,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:12:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:13,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:12:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:13,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:14,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:14,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:14,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:15,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:15,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:15,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:16,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:16,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:17,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:17,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:17,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:17,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:18,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:18,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:18,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:19,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:19,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:19,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:19,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:20,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:20,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:20,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:20,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:20,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:21,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:21,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:21,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:21,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:22,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:22,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:22,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:22,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:22,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:23,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:23,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:23,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:23,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:23,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:24,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:24,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:24,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:24,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:24,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:24,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:24,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:25,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:25,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:25,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:25,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:25,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:26,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:26,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:26,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:26,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:26,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:26,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:26,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:27,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:27,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:27,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:27,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:27,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:27,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:28,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:28,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:28,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:28,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:28,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:28,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:28,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:29,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:29,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:29,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:29,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:29,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:29,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:29,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:34,127 INFO L134 CoverageAnalysis]: Checked inductivity of 20254 backedges. 0 proven. 8702 refuted. 0 times theorem prover too weak. 11552 trivial. 0 not checked. [2020-09-04 13:12:34,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095292908] [2020-09-04 13:12:34,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812219234] [2020-09-04 13:12:34,128 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:12:34,388 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:12:34,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:12:34,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 1487 conjuncts, 156 conjunts are in the unsatisfiable core [2020-09-04 13:12:34,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:12:34,854 INFO L134 CoverageAnalysis]: Checked inductivity of 20254 backedges. 0 proven. 8702 refuted. 0 times theorem prover too weak. 11552 trivial. 0 not checked. [2020-09-04 13:12:34,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:12:34,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81] total 83 [2020-09-04 13:12:34,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185192908] [2020-09-04 13:12:34,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 83 states [2020-09-04 13:12:34,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:12:34,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2020-09-04 13:12:34,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3167, Invalid=3639, Unknown=0, NotChecked=0, Total=6806 [2020-09-04 13:12:34,857 INFO L87 Difference]: Start difference. First operand 254 states and 262 transitions. Second operand 83 states. [2020-09-04 13:12:38,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:12:38,709 INFO L93 Difference]: Finished difference Result 263 states and 273 transitions. [2020-09-04 13:12:38,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2020-09-04 13:12:38,710 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 545 [2020-09-04 13:12:38,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:12:38,712 INFO L225 Difference]: With dead ends: 263 [2020-09-04 13:12:38,712 INFO L226 Difference]: Without dead ends: 259 [2020-09-04 13:12:38,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6005 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=9563, Invalid=16197, Unknown=0, NotChecked=0, Total=25760 [2020-09-04 13:12:38,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-04 13:12:38,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 257. [2020-09-04 13:12:38,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-09-04 13:12:38,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 265 transitions. [2020-09-04 13:12:38,721 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 265 transitions. Word has length 545 [2020-09-04 13:12:38,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:12:38,721 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 265 transitions. [2020-09-04 13:12:38,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 83 states. [2020-09-04 13:12:38,721 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 265 transitions. [2020-09-04 13:12:38,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2020-09-04 13:12:38,724 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:12:38,724 INFO L422 BasicCegarLoop]: trace histogram [78, 78, 77, 77, 77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:12:38,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:12:38,925 INFO L427 AbstractCegarLoop]: === Iteration 79 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:12:38,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:12:38,926 INFO L82 PathProgramCache]: Analyzing trace with hash 963585256, now seen corresponding path program 77 times [2020-09-04 13:12:38,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:12:38,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939051429] [2020-09-04 13:12:38,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:12:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:39,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:12:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:39,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:12:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:39,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:39,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:40,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:40,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:40,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:41,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:41,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:41,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:42,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:42,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:42,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:43,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:43,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:43,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:44,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:44,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:44,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:44,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:45,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:45,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:45,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:45,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:46,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:46,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:46,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:46,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:46,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:47,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:47,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:47,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:47,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:48,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:48,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:48,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:48,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:48,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:49,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:49,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:49,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:49,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:49,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:50,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:50,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:50,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:50,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:50,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:50,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:51,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:51,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:51,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:51,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:51,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:51,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:52,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:52,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:52,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:52,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:52,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:52,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:53,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:53,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:53,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:53,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:53,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:53,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:54,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:54,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:54,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:54,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:54,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:54,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:54,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:54,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:55,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:55,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:55,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:55,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:12:55,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:12:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:00,242 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 0 proven. 8932 refuted. 0 times theorem prover too weak. 11858 trivial. 0 not checked. [2020-09-04 13:13:00,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939051429] [2020-09-04 13:13:00,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304360615] [2020-09-04 13:13:00,242 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:13:00,673 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 78 check-sat command(s) [2020-09-04 13:13:00,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:13:00,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 158 conjunts are in the unsatisfiable core [2020-09-04 13:13:00,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:13:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 0 proven. 8932 refuted. 0 times theorem prover too weak. 11858 trivial. 0 not checked. [2020-09-04 13:13:01,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:13:01,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 84 [2020-09-04 13:13:01,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209345941] [2020-09-04 13:13:01,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 84 states [2020-09-04 13:13:01,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:13:01,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2020-09-04 13:13:01,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3247, Invalid=3725, Unknown=0, NotChecked=0, Total=6972 [2020-09-04 13:13:01,154 INFO L87 Difference]: Start difference. First operand 257 states and 265 transitions. Second operand 84 states. [2020-09-04 13:13:04,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:13:04,966 INFO L93 Difference]: Finished difference Result 266 states and 276 transitions. [2020-09-04 13:13:04,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2020-09-04 13:13:04,967 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 552 [2020-09-04 13:13:04,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:13:04,969 INFO L225 Difference]: With dead ends: 266 [2020-09-04 13:13:04,969 INFO L226 Difference]: Without dead ends: 262 [2020-09-04 13:13:04,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 869 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6161 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=9804, Invalid=16602, Unknown=0, NotChecked=0, Total=26406 [2020-09-04 13:13:04,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-09-04 13:13:04,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 260. [2020-09-04 13:13:04,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-04 13:13:04,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 268 transitions. [2020-09-04 13:13:04,976 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 268 transitions. Word has length 552 [2020-09-04 13:13:04,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:13:04,977 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 268 transitions. [2020-09-04 13:13:04,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 84 states. [2020-09-04 13:13:04,977 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 268 transitions. [2020-09-04 13:13:04,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2020-09-04 13:13:04,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:13:04,981 INFO L422 BasicCegarLoop]: trace histogram [79, 79, 78, 78, 78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:13:05,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-09-04 13:13:05,195 INFO L427 AbstractCegarLoop]: === Iteration 80 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:13:05,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:13:05,195 INFO L82 PathProgramCache]: Analyzing trace with hash -487877449, now seen corresponding path program 78 times [2020-09-04 13:13:05,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:13:05,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140716577] [2020-09-04 13:13:05,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:13:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:05,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:13:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:05,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:13:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:05,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:06,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:06,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:06,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:07,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:07,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:07,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:08,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:08,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:08,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:09,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:09,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:09,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:10,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:10,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:10,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:11,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:11,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:11,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:11,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:12,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:12,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:12,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:12,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:12,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:13,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:13,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:13,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:13,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:14,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:14,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:14,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:14,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:14,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:15,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:15,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:15,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:15,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:15,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:16,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:16,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:16,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:16,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:16,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:16,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:16,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:17,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:17,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:17,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:17,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:17,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:17,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:18,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:18,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:18,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:18,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:18,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:18,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:19,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:19,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:19,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:19,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:19,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:19,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:20,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:20,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:20,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:20,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:20,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:20,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:20,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:21,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:21,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:21,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:21,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:21,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:21,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:21,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:21,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:22,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:22,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:22,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 21333 backedges. 0 proven. 9165 refuted. 0 times theorem prover too weak. 12168 trivial. 0 not checked. [2020-09-04 13:13:26,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140716577] [2020-09-04 13:13:26,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717506944] [2020-09-04 13:13:26,954 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:13:27,329 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 79 check-sat command(s) [2020-09-04 13:13:27,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:13:27,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 1525 conjuncts, 160 conjunts are in the unsatisfiable core [2020-09-04 13:13:27,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:13:27,831 INFO L134 CoverageAnalysis]: Checked inductivity of 21333 backedges. 0 proven. 9165 refuted. 0 times theorem prover too weak. 12168 trivial. 0 not checked. [2020-09-04 13:13:27,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:13:27,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 83] total 85 [2020-09-04 13:13:27,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737912191] [2020-09-04 13:13:27,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 85 states [2020-09-04 13:13:27,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:13:27,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2020-09-04 13:13:27,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3328, Invalid=3812, Unknown=0, NotChecked=0, Total=7140 [2020-09-04 13:13:27,834 INFO L87 Difference]: Start difference. First operand 260 states and 268 transitions. Second operand 85 states. [2020-09-04 13:13:31,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:13:31,944 INFO L93 Difference]: Finished difference Result 269 states and 279 transitions. [2020-09-04 13:13:31,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2020-09-04 13:13:31,946 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 559 [2020-09-04 13:13:31,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:13:31,948 INFO L225 Difference]: With dead ends: 269 [2020-09-04 13:13:31,949 INFO L226 Difference]: Without dead ends: 265 [2020-09-04 13:13:31,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 717 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6319 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=10048, Invalid=17012, Unknown=0, NotChecked=0, Total=27060 [2020-09-04 13:13:31,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-04 13:13:31,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2020-09-04 13:13:31,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-04 13:13:31,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 271 transitions. [2020-09-04 13:13:31,957 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 271 transitions. Word has length 559 [2020-09-04 13:13:31,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:13:31,958 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 271 transitions. [2020-09-04 13:13:31,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 85 states. [2020-09-04 13:13:31,958 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 271 transitions. [2020-09-04 13:13:31,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 567 [2020-09-04 13:13:31,961 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:13:31,961 INFO L422 BasicCegarLoop]: trace histogram [80, 80, 79, 79, 79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:13:32,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2020-09-04 13:13:32,162 INFO L427 AbstractCegarLoop]: === Iteration 81 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:13:32,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:13:32,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1246094510, now seen corresponding path program 79 times [2020-09-04 13:13:32,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:13:32,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370346646] [2020-09-04 13:13:32,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:13:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:32,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:13:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:32,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:13:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:32,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:33,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:33,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:33,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:34,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:34,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:35,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:35,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:35,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:35,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:36,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:36,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:36,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:37,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:37,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:37,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:38,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:38,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:38,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:38,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:39,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:39,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:39,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:40,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:40,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:40,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:40,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:40,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:41,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:41,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:41,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:41,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:42,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:42,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:42,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:42,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:42,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:42,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:43,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:43,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:43,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:43,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:44,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:44,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:44,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:44,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:44,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:45,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:45,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:45,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:45,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:45,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:45,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:46,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:46,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:46,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:46,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:46,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:46,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:47,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:47,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:47,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:47,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:47,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:47,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:47,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:47,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:48,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:48,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:48,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:48,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:48,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:48,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:48,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:49,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:49,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:49,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:49,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:49,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:49,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:49,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:13:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:54,695 INFO L134 CoverageAnalysis]: Checked inductivity of 21883 backedges. 0 proven. 9401 refuted. 0 times theorem prover too weak. 12482 trivial. 0 not checked. [2020-09-04 13:13:54,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370346646] [2020-09-04 13:13:54,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670691374] [2020-09-04 13:13:54,696 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:13:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:13:54,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 162 conjunts are in the unsatisfiable core [2020-09-04 13:13:54,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:13:55,457 INFO L134 CoverageAnalysis]: Checked inductivity of 21883 backedges. 0 proven. 9401 refuted. 0 times theorem prover too weak. 12482 trivial. 0 not checked. [2020-09-04 13:13:55,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:13:55,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 84] total 86 [2020-09-04 13:13:55,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065211761] [2020-09-04 13:13:55,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 86 states [2020-09-04 13:13:55,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:13:55,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2020-09-04 13:13:55,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3410, Invalid=3900, Unknown=0, NotChecked=0, Total=7310 [2020-09-04 13:13:55,459 INFO L87 Difference]: Start difference. First operand 263 states and 271 transitions. Second operand 86 states. [2020-09-04 13:13:59,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:13:59,645 INFO L93 Difference]: Finished difference Result 272 states and 282 transitions. [2020-09-04 13:13:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-09-04 13:13:59,646 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 566 [2020-09-04 13:13:59,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:13:59,648 INFO L225 Difference]: With dead ends: 272 [2020-09-04 13:13:59,648 INFO L226 Difference]: Without dead ends: 268 [2020-09-04 13:13:59,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 891 GetRequests, 726 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6479 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=10295, Invalid=17427, Unknown=0, NotChecked=0, Total=27722 [2020-09-04 13:13:59,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-04 13:13:59,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 266. [2020-09-04 13:13:59,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-09-04 13:13:59,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 274 transitions. [2020-09-04 13:13:59,663 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 274 transitions. Word has length 566 [2020-09-04 13:13:59,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:13:59,664 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 274 transitions. [2020-09-04 13:13:59,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 86 states. [2020-09-04 13:13:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 274 transitions. [2020-09-04 13:13:59,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2020-09-04 13:13:59,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:13:59,667 INFO L422 BasicCegarLoop]: trace histogram [81, 81, 80, 80, 80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:13:59,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:13:59,868 INFO L427 AbstractCegarLoop]: === Iteration 82 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:13:59,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:13:59,869 INFO L82 PathProgramCache]: Analyzing trace with hash -994642227, now seen corresponding path program 80 times [2020-09-04 13:13:59,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:13:59,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806612291] [2020-09-04 13:13:59,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:14:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:00,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:14:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:00,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:14:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:00,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:00,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:01,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:01,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:02,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:02,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:02,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:03,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:03,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:03,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:04,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:04,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:04,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:04,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:05,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:05,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:05,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:06,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:06,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:06,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:06,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:07,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:07,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:07,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:08,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:08,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:08,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:08,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:08,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:09,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:09,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:09,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:09,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:10,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:10,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:10,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:10,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:10,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:11,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:11,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:11,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:11,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:11,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:12,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:12,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:12,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:12,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:12,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:13,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:13,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:13,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:13,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:13,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:13,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:14,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:14,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:14,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:14,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:14,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:14,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:15,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:15,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:15,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:15,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:15,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:15,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:15,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:16,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:16,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:16,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:16,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:16,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:16,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:16,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:16,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:17,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:17,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:17,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:17,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:17,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:17,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:22,871 INFO L134 CoverageAnalysis]: Checked inductivity of 22440 backedges. 0 proven. 9640 refuted. 0 times theorem prover too weak. 12800 trivial. 0 not checked. [2020-09-04 13:14:22,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806612291] [2020-09-04 13:14:22,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738696358] [2020-09-04 13:14:22,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:14:23,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:14:23,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:14:23,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 1563 conjuncts, 164 conjunts are in the unsatisfiable core [2020-09-04 13:14:23,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:14:23,632 INFO L134 CoverageAnalysis]: Checked inductivity of 22440 backedges. 0 proven. 9640 refuted. 0 times theorem prover too weak. 12800 trivial. 0 not checked. [2020-09-04 13:14:23,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:14:23,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85] total 87 [2020-09-04 13:14:23,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627497610] [2020-09-04 13:14:23,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 87 states [2020-09-04 13:14:23,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:14:23,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2020-09-04 13:14:23,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3493, Invalid=3989, Unknown=0, NotChecked=0, Total=7482 [2020-09-04 13:14:23,634 INFO L87 Difference]: Start difference. First operand 266 states and 274 transitions. Second operand 87 states. [2020-09-04 13:14:27,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:14:27,698 INFO L93 Difference]: Finished difference Result 275 states and 285 transitions. [2020-09-04 13:14:27,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2020-09-04 13:14:27,699 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 573 [2020-09-04 13:14:27,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:14:27,702 INFO L225 Difference]: With dead ends: 275 [2020-09-04 13:14:27,702 INFO L226 Difference]: Without dead ends: 271 [2020-09-04 13:14:27,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 902 GetRequests, 735 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6641 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=10545, Invalid=17847, Unknown=0, NotChecked=0, Total=28392 [2020-09-04 13:14:27,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-04 13:14:27,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 269. [2020-09-04 13:14:27,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-09-04 13:14:27,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 277 transitions. [2020-09-04 13:14:27,710 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 277 transitions. Word has length 573 [2020-09-04 13:14:27,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:14:27,711 INFO L479 AbstractCegarLoop]: Abstraction has 269 states and 277 transitions. [2020-09-04 13:14:27,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 87 states. [2020-09-04 13:14:27,711 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 277 transitions. [2020-09-04 13:14:27,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2020-09-04 13:14:27,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:14:27,714 INFO L422 BasicCegarLoop]: trace histogram [82, 82, 81, 81, 81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:14:27,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:14:27,915 INFO L427 AbstractCegarLoop]: === Iteration 83 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:14:27,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:14:27,916 INFO L82 PathProgramCache]: Analyzing trace with hash -893372228, now seen corresponding path program 81 times [2020-09-04 13:14:27,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:14:27,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384450873] [2020-09-04 13:14:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:14:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:28,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:14:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:28,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:14:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:28,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:29,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:29,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:29,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:30,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:30,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:30,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:31,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:31,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:31,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:32,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:32,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:32,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:33,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:33,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:33,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:34,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:34,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:34,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:34,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:35,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:35,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:35,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:35,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:36,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:36,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:36,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:36,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:37,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:37,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:37,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:37,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:38,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:38,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:38,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:38,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:39,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:39,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:39,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:39,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:39,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:40,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:40,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:40,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:40,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:40,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:41,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:41,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:41,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:41,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:41,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:42,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:42,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:42,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:42,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:42,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:42,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:43,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:43,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:43,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:43,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:43,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:43,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:44,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:44,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:44,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:44,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:44,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:44,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:44,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:45,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:45,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:45,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:45,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:45,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:45,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:45,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:46,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:46,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:46,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:46,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:46,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:46,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:51,947 INFO L134 CoverageAnalysis]: Checked inductivity of 23004 backedges. 0 proven. 9882 refuted. 0 times theorem prover too weak. 13122 trivial. 0 not checked. [2020-09-04 13:14:51,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384450873] [2020-09-04 13:14:51,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122438542] [2020-09-04 13:14:51,947 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:14:52,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 82 check-sat command(s) [2020-09-04 13:14:52,364 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:14:52,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 166 conjunts are in the unsatisfiable core [2020-09-04 13:14:52,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:14:52,880 INFO L134 CoverageAnalysis]: Checked inductivity of 23004 backedges. 0 proven. 9882 refuted. 0 times theorem prover too weak. 13122 trivial. 0 not checked. [2020-09-04 13:14:52,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:14:52,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86] total 88 [2020-09-04 13:14:52,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186785858] [2020-09-04 13:14:52,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 88 states [2020-09-04 13:14:52,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:14:52,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2020-09-04 13:14:52,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3577, Invalid=4079, Unknown=0, NotChecked=0, Total=7656 [2020-09-04 13:14:52,883 INFO L87 Difference]: Start difference. First operand 269 states and 277 transitions. Second operand 88 states. [2020-09-04 13:14:57,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:14:57,379 INFO L93 Difference]: Finished difference Result 278 states and 288 transitions. [2020-09-04 13:14:57,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2020-09-04 13:14:57,380 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 580 [2020-09-04 13:14:57,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:14:57,382 INFO L225 Difference]: With dead ends: 278 [2020-09-04 13:14:57,382 INFO L226 Difference]: Without dead ends: 274 [2020-09-04 13:14:57,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 913 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6805 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=10798, Invalid=18272, Unknown=0, NotChecked=0, Total=29070 [2020-09-04 13:14:57,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-04 13:14:57,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 272. [2020-09-04 13:14:57,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-09-04 13:14:57,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 280 transitions. [2020-09-04 13:14:57,390 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 280 transitions. Word has length 580 [2020-09-04 13:14:57,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:14:57,390 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 280 transitions. [2020-09-04 13:14:57,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 88 states. [2020-09-04 13:14:57,391 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 280 transitions. [2020-09-04 13:14:57,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2020-09-04 13:14:57,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:14:57,393 INFO L422 BasicCegarLoop]: trace histogram [83, 83, 82, 82, 82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:14:57,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:14:57,595 INFO L427 AbstractCegarLoop]: === Iteration 84 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:14:57,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:14:57,596 INFO L82 PathProgramCache]: Analyzing trace with hash 2092663267, now seen corresponding path program 82 times [2020-09-04 13:14:57,596 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:14:57,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743613199] [2020-09-04 13:14:57,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:14:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:57,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:14:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:57,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:14:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:58,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:58,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:59,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:59,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:14:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:14:59,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:00,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:00,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:00,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:00,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:01,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:01,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:01,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:02,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:02,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:03,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:03,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:03,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:04,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:04,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:04,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:04,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:05,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:05,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:05,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:06,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:06,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:06,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:06,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:07,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:07,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:07,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:07,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:07,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:08,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:08,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:08,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:08,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:09,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:09,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:09,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:15:09,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:15:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat