/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o1000.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:59:08,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:59:08,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:59:08,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:59:08,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:59:08,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:59:08,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:59:08,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:59:08,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:59:08,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:59:08,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:59:08,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:59:08,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:59:08,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:59:08,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:59:08,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:59:08,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:59:08,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:59:08,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:59:08,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:59:08,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:59:08,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:59:08,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:59:08,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:59:08,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:59:08,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:59:08,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:59:08,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:59:08,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:59:08,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:59:08,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:59:08,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:59:08,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:59:08,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:59:08,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:59:08,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:59:08,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:59:08,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:59:08,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:59:08,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:59:08,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:59:08,513 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 [2020-09-24 15:59:08,541 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:59:08,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:59:08,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:59:08,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:59:08,543 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:59:08,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:59:08,543 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:59:08,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:59:08,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:59:08,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:59:08,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:59:08,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:59:08,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:59:08,545 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:59:08,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:59:08,545 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:59:08,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:59:08,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:59:08,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:59:08,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:59:08,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:59:08,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:59:08,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:59:08,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:59:08,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:59:08,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:59:08,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:59:08,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:59:08,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:59:08,548 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:59:09,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:59:09,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:59:09,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:59:09,078 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:59:09,080 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:59:09,081 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o1000.c [2020-09-24 15:59:09,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/971457379/dd615e34724a43789ce9a8db9e37b6ab/FLAG92ee05d56 [2020-09-24 15:59:09,699 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:59:09,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o1000.c [2020-09-24 15:59:09,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/971457379/dd615e34724a43789ce9a8db9e37b6ab/FLAG92ee05d56 [2020-09-24 15:59:10,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/971457379/dd615e34724a43789ce9a8db9e37b6ab [2020-09-24 15:59:10,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:59:10,063 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:59:10,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:59:10,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:59:10,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:59:10,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:59:10" (1/1) ... [2020-09-24 15:59:10,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337988d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:10, skipping insertion in model container [2020-09-24 15:59:10,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:59:10" (1/1) ... [2020-09-24 15:59:10,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:59:10,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:59:10,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:59:10,345 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:59:10,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:59:10,381 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:59:10,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:10 WrapperNode [2020-09-24 15:59:10,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:59:10,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:59:10,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:59:10,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:59:10,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:10" (1/1) ... [2020-09-24 15:59:10,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:10" (1/1) ... [2020-09-24 15:59:10,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:10" (1/1) ... [2020-09-24 15:59:10,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:10" (1/1) ... [2020-09-24 15:59:10,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:10" (1/1) ... [2020-09-24 15:59:10,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:10" (1/1) ... [2020-09-24 15:59:10,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:10" (1/1) ... [2020-09-24 15:59:10,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:59:10,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:59:10,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:59:10,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:59:10,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:10" (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 [2020-09-24 15:59:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:59:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:59:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-24 15:59:10,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:59:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 15:59:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:59:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-24 15:59:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:59:10,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:59:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:59:10,754 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:59:10,754 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:59:10,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:59:10 BoogieIcfgContainer [2020-09-24 15:59:10,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:59:10,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:59:10,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:59:10,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:59:10,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:59:10" (1/3) ... [2020-09-24 15:59:10,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17db88ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:59:10, skipping insertion in model container [2020-09-24 15:59:10,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:59:10" (2/3) ... [2020-09-24 15:59:10,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17db88ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:59:10, skipping insertion in model container [2020-09-24 15:59:10,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:59:10" (3/3) ... [2020-09-24 15:59:10,774 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o1000.c [2020-09-24 15:59:10,786 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:59:10,797 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:59:10,819 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:59:10,850 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:59:10,851 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:59:10,851 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:59:10,851 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:59:10,851 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:59:10,851 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:59:10,852 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:59:10,852 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:59:10,873 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-24 15:59:10,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 15:59:10,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:10,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:10,881 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:10,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:10,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-09-24 15:59:10,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:10,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618321853] [2020-09-24 15:59:10,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,049 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,049 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,049 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 15:59:11,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:59:11,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:59:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 15:59:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:11,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:11,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,181 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,181 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:11,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:11,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:11,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:11,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:11,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,207 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,208 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,208 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:11,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:11,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:11,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:11,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:59:11,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618321853] [2020-09-24 15:59:11,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:59:11,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:59:11,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577254965] [2020-09-24 15:59:11,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:59:11,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:11,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:59:11,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:59:11,279 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-24 15:59:11,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:11,351 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-24 15:59:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 15:59:11,353 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 15:59:11,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:11,367 INFO L225 Difference]: With dead ends: 37 [2020-09-24 15:59:11,367 INFO L226 Difference]: Without dead ends: 22 [2020-09-24 15:59:11,372 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:59:11,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-24 15:59:11,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-24 15:59:11,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-24 15:59:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-09-24 15:59:11,425 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-09-24 15:59:11,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:11,426 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-09-24 15:59:11,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:59:11,426 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-09-24 15:59:11,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-24 15:59:11,429 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:11,429 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:11,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:59:11,430 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:11,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:11,430 INFO L82 PathProgramCache]: Analyzing trace with hash 189324707, now seen corresponding path program 1 times [2020-09-24 15:59:11,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:11,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934845492] [2020-09-24 15:59:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,503 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 15:59:11,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 15:59:11,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:59:11,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-24 15:59:11,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 15:59:11,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:11,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,603 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:11,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:11,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:11,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:11,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,628 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:11,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:11,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:11,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,689 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,690 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,690 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:11,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:11,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:11,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:11,741 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 15:59:11,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934845492] [2020-09-24 15:59:11,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:11,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 15:59:11,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569973773] [2020-09-24 15:59:11,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:59:11,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:11,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:59:11,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:59:11,750 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-09-24 15:59:11,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:11,829 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-24 15:59:11,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 15:59:11,830 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-24 15:59:11,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:11,831 INFO L225 Difference]: With dead ends: 31 [2020-09-24 15:59:11,831 INFO L226 Difference]: Without dead ends: 26 [2020-09-24 15:59:11,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:59:11,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-24 15:59:11,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-24 15:59:11,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-24 15:59:11,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-24 15:59:11,840 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2020-09-24 15:59:11,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:11,840 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-24 15:59:11,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:59:11,840 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-24 15:59:11,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-24 15:59:11,842 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:11,842 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:11,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:59:11,842 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:11,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:11,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1416732684, now seen corresponding path program 2 times [2020-09-24 15:59:11,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:11,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1196920179] [2020-09-24 15:59:11,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:11,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:11,911 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:11,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:11,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:11,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:59:11,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:11,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:59:11,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:11,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:59:11,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-24 15:59:11,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:59:11,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:12,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,022 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,022 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,022 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,023 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:12,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:12,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:12,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:12,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:12,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,055 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,055 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,056 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,056 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:12,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:12,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:12,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:12,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:12,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:12,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:12,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:12,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:12,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:12,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,199 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:12,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:12,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,231 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 15:59:12,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1196920179] [2020-09-24 15:59:12,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:12,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 15:59:12,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689045441] [2020-09-24 15:59:12,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:59:12,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:12,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:59:12,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:59:12,234 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-24 15:59:12,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:12,328 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-09-24 15:59:12,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:59:12,329 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-24 15:59:12,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:12,330 INFO L225 Difference]: With dead ends: 35 [2020-09-24 15:59:12,331 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 15:59:12,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-24 15:59:12,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 15:59:12,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-24 15:59:12,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 15:59:12,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-24 15:59:12,339 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 30 [2020-09-24 15:59:12,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:12,339 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-24 15:59:12,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:59:12,340 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-24 15:59:12,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-24 15:59:12,341 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:12,341 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:12,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:59:12,342 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:12,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:12,342 INFO L82 PathProgramCache]: Analyzing trace with hash -209476043, now seen corresponding path program 3 times [2020-09-24 15:59:12,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:12,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94163126] [2020-09-24 15:59:12,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,414 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,417 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,417 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,417 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 15:59:12,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 15:59:12,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:59:12,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-24 15:59:12,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 15:59:12,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,489 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,490 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,490 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:12,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:12,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:12,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,521 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:12,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:12,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:12,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,579 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,579 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:12,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:12,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:12,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:12,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:12,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,630 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,630 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,630 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,631 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:12,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:12,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:12,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:12,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:12,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,678 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,678 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,679 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,679 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:12,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:12,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:12,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:12,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:12,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:12,705 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 15:59:12,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [94163126] [2020-09-24 15:59:12,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:12,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 15:59:12,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571916252] [2020-09-24 15:59:12,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:59:12,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:12,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:59:12,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:59:12,707 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-24 15:59:12,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:12,853 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-24 15:59:12,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:59:12,854 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-24 15:59:12,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:12,855 INFO L225 Difference]: With dead ends: 39 [2020-09-24 15:59:12,855 INFO L226 Difference]: Without dead ends: 34 [2020-09-24 15:59:12,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:59:12,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-24 15:59:12,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-09-24 15:59:12,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-24 15:59:12,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-24 15:59:12,868 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 37 [2020-09-24 15:59:12,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:12,869 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-24 15:59:12,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:59:12,869 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-24 15:59:12,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-24 15:59:12,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:12,873 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:12,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:59:12,874 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:12,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:12,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1007399302, now seen corresponding path program 4 times [2020-09-24 15:59:12,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:12,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629658406] [2020-09-24 15:59:12,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:12,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:12,948 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:12,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:12,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:12,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-24 15:59:12,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:12,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 15:59:12,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:12,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:59:12,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-24 15:59:12,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 15:59:12,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,011 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,012 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,012 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,012 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:13,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:13,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:13,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:13,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,063 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,064 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,064 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,064 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:13,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 15:59:13,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:13,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,140 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,140 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,140 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:13,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:13,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:13,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:13,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,207 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,207 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,208 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,209 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:13,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:13,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:13,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:13,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:13,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:13,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:13,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:13,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:13,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,341 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,341 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,342 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,344 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:13,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:13,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:13,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:13,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,379 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 15:59:13,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629658406] [2020-09-24 15:59:13,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:13,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-24 15:59:13,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188069222] [2020-09-24 15:59:13,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 15:59:13,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:13,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 15:59:13,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-24 15:59:13,382 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 13 states. [2020-09-24 15:59:13,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:13,567 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-24 15:59:13,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 15:59:13,567 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-24 15:59:13,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:13,569 INFO L225 Difference]: With dead ends: 43 [2020-09-24 15:59:13,569 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 15:59:13,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-24 15:59:13,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 15:59:13,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-24 15:59:13,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-24 15:59:13,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-24 15:59:13,577 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 44 [2020-09-24 15:59:13,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:13,578 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-24 15:59:13,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 15:59:13,578 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-24 15:59:13,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 15:59:13,579 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:13,579 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:13,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:59:13,580 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:13,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:13,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1787659065, now seen corresponding path program 5 times [2020-09-24 15:59:13,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:13,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800779443] [2020-09-24 15:59:13,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,633 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,634 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,634 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,634 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 15:59:13,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 15:59:13,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:59:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-24 15:59:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 15:59:13,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:13,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:13,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:13,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,723 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,723 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,724 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:13,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:13,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:13,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:13,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,787 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,787 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,787 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:13,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:59:13,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:13,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:13,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,842 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,843 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,843 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,843 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:13,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:13,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:13,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:13,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,898 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,899 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:13,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:13,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:13,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:13,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:13,951 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:13,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:13,952 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:13,952 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:13,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:13,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:13,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:13,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:13,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:13,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:13,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:13,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:13,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,003 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,004 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,004 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:14,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:14,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:14,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:14,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:14,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:14,034 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-24 15:59:14,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800779443] [2020-09-24 15:59:14,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:14,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 15:59:14,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399913985] [2020-09-24 15:59:14,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 15:59:14,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:14,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 15:59:14,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:59:14,037 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 15 states. [2020-09-24 15:59:14,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:14,252 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-24 15:59:14,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 15:59:14,252 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-09-24 15:59:14,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:14,254 INFO L225 Difference]: With dead ends: 47 [2020-09-24 15:59:14,254 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 15:59:14,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:14,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 15:59:14,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 15:59:14,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 15:59:14,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-24 15:59:14,261 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 51 [2020-09-24 15:59:14,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:14,262 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-24 15:59:14,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 15:59:14,262 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-24 15:59:14,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-24 15:59:14,263 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:14,263 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:14,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:59:14,264 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:14,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:14,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1360883432, now seen corresponding path program 6 times [2020-09-24 15:59:14,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:14,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511693859] [2020-09-24 15:59:14,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,327 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,327 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,327 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 15:59:14,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:59:14,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:59:14,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-24 15:59:14,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 15:59:14,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:14,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,374 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,374 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,374 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:14,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:14,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:14,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:14,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:14,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:14,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,419 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,419 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,419 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,419 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:14,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:59:14,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:14,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:14,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:14,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:14,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,488 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,488 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,489 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:14,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 15:59:14,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:14,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:14,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:14,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:14,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:14,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:59:14,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:14,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:14,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:14,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:14,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,625 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,625 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,626 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:14,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:14,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:14,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:14,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:14,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:14,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,697 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,697 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,698 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:14,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:14,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:14,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:14,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:14,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:14,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,763 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,763 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,764 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:14,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:14,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:14,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:14,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:14,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:14,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:14,822 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:14,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:14,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:14,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:14,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:14,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:14,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:14,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:14,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:14,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:14,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-24 15:59:14,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511693859] [2020-09-24 15:59:14,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:14,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-24 15:59:14,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329712611] [2020-09-24 15:59:14,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-24 15:59:14,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:14,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-24 15:59:14,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-24 15:59:14,870 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-09-24 15:59:15,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:15,172 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-24 15:59:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 15:59:15,172 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-24 15:59:15,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:15,175 INFO L225 Difference]: With dead ends: 51 [2020-09-24 15:59:15,175 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 15:59:15,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-09-24 15:59:15,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 15:59:15,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-24 15:59:15,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-24 15:59:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-24 15:59:15,186 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 58 [2020-09-24 15:59:15,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:15,186 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-24 15:59:15,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-24 15:59:15,186 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-24 15:59:15,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-24 15:59:15,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:15,191 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:15,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:59:15,191 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:15,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:15,192 INFO L82 PathProgramCache]: Analyzing trace with hash -807968423, now seen corresponding path program 7 times [2020-09-24 15:59:15,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:15,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884413124] [2020-09-24 15:59:15,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,306 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,306 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-24 15:59:15,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 15:59:15,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 15:59:15,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-24 15:59:15,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 15:59:15,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:15,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,359 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,359 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,360 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:15,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:15,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:15,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:15,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,451 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:15,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 15:59:15,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:15,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:15,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,567 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:15,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-24 15:59:15,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:15,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:15,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:15,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:15,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:15,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:15,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:15,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:15,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:15,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:15,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:15,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:15,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,776 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,777 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,777 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:15,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:15,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:15,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:15,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:15,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,837 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:15,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:15,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:15,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:15,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,902 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,903 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,903 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,903 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:15,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:15,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:15,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:15,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:15,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:15,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:15,959 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:15,959 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:15,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:15,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:15,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:15,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:15,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:15,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:15,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:15,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:15,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-24 15:59:16,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884413124] [2020-09-24 15:59:16,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:16,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 15:59:16,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195308895] [2020-09-24 15:59:16,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 15:59:16,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:16,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 15:59:16,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:59:16,026 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-24 15:59:16,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:16,433 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-24 15:59:16,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-24 15:59:16,433 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-09-24 15:59:16,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:16,435 INFO L225 Difference]: With dead ends: 55 [2020-09-24 15:59:16,435 INFO L226 Difference]: Without dead ends: 50 [2020-09-24 15:59:16,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2020-09-24 15:59:16,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-24 15:59:16,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-24 15:59:16,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-24 15:59:16,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-24 15:59:16,452 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 65 [2020-09-24 15:59:16,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:16,452 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-24 15:59:16,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 15:59:16,456 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-24 15:59:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-24 15:59:16,457 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:16,457 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:16,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:59:16,457 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:16,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:16,459 INFO L82 PathProgramCache]: Analyzing trace with hash -705364310, now seen corresponding path program 8 times [2020-09-24 15:59:16,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:16,459 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774673542] [2020-09-24 15:59:16,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,552 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-24 15:59:16,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 15:59:16,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 15:59:16,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-24 15:59:16,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 15:59:16,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,600 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,601 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,601 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,601 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:16,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:16,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:16,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:16,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,684 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,685 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:16,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 15:59:16,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:16,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:16,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:16,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,773 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,773 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:16,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 15:59:16,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:16,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:16,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:16,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,859 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,860 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,860 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,860 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:16,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:59:16,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:16,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:16,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:16,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:16,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:16,935 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:16,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:16,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:16,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:16,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:16,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:16,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:16,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:16,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:16,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:16,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:16,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,009 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,009 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,009 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:17,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:59:17,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:17,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:17,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:17,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,080 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,080 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,081 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:17,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:17,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:17,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:17,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,145 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,146 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,146 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,146 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:17,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:17,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:17,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:17,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:17,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,216 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,217 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:17,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:17,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:17,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:17,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,298 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,298 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,299 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:17,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:17,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:17,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:17,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:17,390 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-24 15:59:17,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774673542] [2020-09-24 15:59:17,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:17,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-24 15:59:17,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213086689] [2020-09-24 15:59:17,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-24 15:59:17,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:17,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-24 15:59:17,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:59:17,399 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-24 15:59:17,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:17,815 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-24 15:59:17,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-24 15:59:17,815 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-24 15:59:17,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:17,817 INFO L225 Difference]: With dead ends: 59 [2020-09-24 15:59:17,817 INFO L226 Difference]: Without dead ends: 54 [2020-09-24 15:59:17,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2020-09-24 15:59:17,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-24 15:59:17,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-24 15:59:17,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-24 15:59:17,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-24 15:59:17,829 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 72 [2020-09-24 15:59:17,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:17,832 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-24 15:59:17,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-24 15:59:17,832 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-24 15:59:17,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-24 15:59:17,834 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:17,834 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:17,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:59:17,835 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:17,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:17,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1418439701, now seen corresponding path program 9 times [2020-09-24 15:59:17,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:17,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98419301] [2020-09-24 15:59:17,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,934 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-24 15:59:17,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 15:59:17,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-24 15:59:17,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-24 15:59:17,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:17,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:17,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:17,983 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:17,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:17,984 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:17,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:17,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:17,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:17,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:17,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:17,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:17,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:17,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:17,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:17,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,067 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,068 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,068 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,068 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 15:59:18,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 15:59:18,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:18,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:18,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:18,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,205 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,205 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,206 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,206 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:18,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 15:59:18,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:18,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:18,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,335 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:18,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 15:59:18,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:18,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:18,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,442 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,442 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,443 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,443 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:18,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 15:59:18,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:18,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:18,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:18,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,541 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:18,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:59:18,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:18,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:18,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:18,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,625 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,625 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:18,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:18,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:18,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:18,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,732 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,734 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:18,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:18,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:18,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:18,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:18,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:18,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:18,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:18,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,876 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,876 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,876 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,876 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:18,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:18,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:18,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:18,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:18,959 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:18,959 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:18,959 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:18,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:18,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:18,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:18,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:18,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:18,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:18,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:19,021 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-24 15:59:19,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98419301] [2020-09-24 15:59:19,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:19,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-24 15:59:19,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065150890] [2020-09-24 15:59:19,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-24 15:59:19,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:19,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-24 15:59:19,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:59:19,025 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 23 states. [2020-09-24 15:59:19,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:19,512 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-24 15:59:19,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 15:59:19,513 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-24 15:59:19,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:19,514 INFO L225 Difference]: With dead ends: 63 [2020-09-24 15:59:19,514 INFO L226 Difference]: Without dead ends: 58 [2020-09-24 15:59:19,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 15:59:19,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-24 15:59:19,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-24 15:59:19,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-24 15:59:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-24 15:59:19,528 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 79 [2020-09-24 15:59:19,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:19,529 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-24 15:59:19,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-24 15:59:19,529 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-24 15:59:19,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-24 15:59:19,530 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:19,530 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:19,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:59:19,530 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:19,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:19,533 INFO L82 PathProgramCache]: Analyzing trace with hash -182126020, now seen corresponding path program 10 times [2020-09-24 15:59:19,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:19,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837722482] [2020-09-24 15:59:19,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:19,642 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:19,642 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:19,642 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:19,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:19,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-24 15:59:19,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:19,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 15:59:19,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:19,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-24 15:59:19,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-24 15:59:19,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 15:59:19,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:19,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:19,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:19,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:19,695 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:19,695 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:19,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:19,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:19,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:19,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:19,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:19,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:19,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:19,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:19,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:19,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:19,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:19,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:19,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:19,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:19,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:19,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 15:59:19,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:19,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:19,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:19,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:19,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:19,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:19,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:19,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:19,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:19,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:19,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 15:59:19,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:19,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 15:59:19,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:19,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:19,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:19,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:19,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:19,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:19,996 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:19,997 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:19,997 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:19,997 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:19,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:19,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:19,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-24 15:59:19,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:19,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:19,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:19,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:20,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,092 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,093 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:20,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:59:20,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:20,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:20,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:20,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,175 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,176 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,176 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:20,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:59:20,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:20,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:20,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:20,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,253 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,253 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,253 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,253 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:20,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 15:59:20,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:20,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:20,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:20,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:20,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:20,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:20,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:20,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:20,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,406 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,406 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,407 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,407 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:20,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:59:20,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:20,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:20,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:20,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,475 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,475 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,475 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:20,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:20,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:20,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:20,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:20,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,543 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,543 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,544 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,544 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:20,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:20,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:20,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:20,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:20,614 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:20,614 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:20,615 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:20,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:20,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:20,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:20,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:20,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:20,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:20,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:20,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:20,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:20,691 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-24 15:59:20,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837722482] [2020-09-24 15:59:20,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:20,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-24 15:59:20,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031388674] [2020-09-24 15:59:20,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-24 15:59:20,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:20,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-24 15:59:20,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:59:20,693 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 25 states. [2020-09-24 15:59:21,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:21,265 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-24 15:59:21,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-24 15:59:21,266 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2020-09-24 15:59:21,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:21,268 INFO L225 Difference]: With dead ends: 67 [2020-09-24 15:59:21,269 INFO L226 Difference]: Without dead ends: 62 [2020-09-24 15:59:21,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 15:59:21,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-24 15:59:21,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-24 15:59:21,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-24 15:59:21,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-09-24 15:59:21,277 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 86 [2020-09-24 15:59:21,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:21,277 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-09-24 15:59:21,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-24 15:59:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-09-24 15:59:21,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-24 15:59:21,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:21,279 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:21,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:59:21,279 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:21,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:21,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1527469181, now seen corresponding path program 11 times [2020-09-24 15:59:21,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:21,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793775607] [2020-09-24 15:59:21,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,390 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,390 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,391 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,391 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-24 15:59:21,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-24 15:59:21,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-24 15:59:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-24 15:59:21,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 15:59:21,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:21,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:21,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,451 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,453 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:21,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:21,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:21,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:21,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,555 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,555 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,556 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 15:59:21,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-24 15:59:21,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:21,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 15:59:21,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:21,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,670 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,671 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,671 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,671 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:21,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 15:59:21,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:21,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:21,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,780 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,780 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,780 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 15:59:21,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 15:59:21,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:21,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:21,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,889 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,889 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:21,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 15:59:21,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:21,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:21,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:21,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:21,978 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:21,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:21,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:21,979 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:21,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:21,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:21,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:59:21,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:21,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:21,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:21,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:21,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,061 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,062 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,062 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,062 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:22,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:22,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:22,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:22,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,142 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:22,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:22,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:22,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:22,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:22,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,218 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,218 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:22,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:22,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:22,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:22,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:22,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,294 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,295 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,295 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:22,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:59:22,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:22,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:22,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,393 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,393 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,393 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:22,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:22,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:22,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:22,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:22,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,465 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,465 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,466 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,466 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:22,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:22,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:22,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:22,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:22,535 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:22,535 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:22,535 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:22,536 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:22,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:22,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:22,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:22,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:22,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:22,636 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-24 15:59:22,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793775607] [2020-09-24 15:59:22,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:22,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-24 15:59:22,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540207141] [2020-09-24 15:59:22,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-24 15:59:22,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:22,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-24 15:59:22,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-24 15:59:22,639 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 27 states. [2020-09-24 15:59:23,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:23,354 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-24 15:59:23,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-24 15:59:23,354 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 93 [2020-09-24 15:59:23,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:23,356 INFO L225 Difference]: With dead ends: 71 [2020-09-24 15:59:23,356 INFO L226 Difference]: Without dead ends: 66 [2020-09-24 15:59:23,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=99, Invalid=1383, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 15:59:23,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-24 15:59:23,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-24 15:59:23,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 15:59:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-24 15:59:23,373 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 93 [2020-09-24 15:59:23,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:23,373 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-24 15:59:23,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-24 15:59:23,373 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-24 15:59:23,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-24 15:59:23,376 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:23,376 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:23,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 15:59:23,376 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:23,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:23,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1034648626, now seen corresponding path program 12 times [2020-09-24 15:59:23,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:23,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131264922] [2020-09-24 15:59:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,502 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,502 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,502 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,502 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-24 15:59:23,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 15:59:23,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-24 15:59:23,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:59:23,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 15:59:23,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,577 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,578 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:23,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:23,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:23,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:23,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,706 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,706 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,707 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,707 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 15:59:23,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 15:59:23,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 15:59:23,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:23,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:23,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:23,884 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:23,884 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:23,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 15:59:23,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:23,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 15:59:23,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:23,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:23,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:23,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 15:59:23,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:23,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,050 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,051 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,051 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,051 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:24,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 15:59:24,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:24,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:24,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,177 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,177 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,177 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 15:59:24,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 15:59:24,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:24,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:24,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,297 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:24,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 15:59:24,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:24,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:24,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:24,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,394 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,395 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,395 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:24,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 15:59:24,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:24,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:24,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:24,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,498 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,498 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,498 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,499 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:24,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:24,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:24,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:24,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:24,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,587 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,588 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:24,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:59:24,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:24,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,673 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,673 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,674 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,674 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:24,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:24,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:24,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:24,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,767 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,768 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,768 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,768 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:24,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:24,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:24,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,845 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,846 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:24,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:24,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:24,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:24,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,924 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,924 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,925 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:24,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:24,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:24,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:24,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:24,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:24,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:24,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:24,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:24,997 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:24,998 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:24,998 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:24,998 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:24,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:24,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:24,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:24,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:25,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:25,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:25,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:25,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:25,097 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-09-24 15:59:25,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131264922] [2020-09-24 15:59:25,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:25,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-24 15:59:25,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064338149] [2020-09-24 15:59:25,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-24 15:59:25,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:25,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-24 15:59:25,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-24 15:59:25,100 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 29 states. [2020-09-24 15:59:25,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:25,999 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-09-24 15:59:26,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-24 15:59:26,000 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 100 [2020-09-24 15:59:26,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:26,001 INFO L225 Difference]: With dead ends: 75 [2020-09-24 15:59:26,001 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 15:59:26,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=107, Invalid=1615, Unknown=0, NotChecked=0, Total=1722 [2020-09-24 15:59:26,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 15:59:26,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 15:59:26,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 15:59:26,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-24 15:59:26,020 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 100 [2020-09-24 15:59:26,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:26,021 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-24 15:59:26,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-24 15:59:26,021 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-24 15:59:26,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-24 15:59:26,022 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:26,022 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:26,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 15:59:26,023 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:26,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:26,023 INFO L82 PathProgramCache]: Analyzing trace with hash 996041487, now seen corresponding path program 13 times [2020-09-24 15:59:26,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:26,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952349885] [2020-09-24 15:59:26,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-24 15:59:26,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 15:59:26,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-24 15:59:26,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 15:59:26,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-24 15:59:26,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,250 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,253 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,253 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,254 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:26,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:26,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:26,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:26,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,368 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,368 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 15:59:26,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-24 15:59:26,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:26,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 15:59:26,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:26,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,548 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,549 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,549 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,549 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 15:59:26,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 15:59:26,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:26,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 15:59:26,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 15:59:26,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 15:59:26,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:26,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 15:59:26,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,813 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,813 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:26,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 15:59:26,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:26,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:26,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:26,925 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:26,926 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:26,926 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:26,926 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:26,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 15:59:26,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:26,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:59:26,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:26,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:26,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:26,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:26,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,036 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,037 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,037 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,037 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:27,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 15:59:27,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:27,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,171 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,172 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,172 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:27,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:59:27,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:27,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:27,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,309 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,309 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,310 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:27,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 15:59:27,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:27,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:27,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,396 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:27,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 15:59:27,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:27,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:27,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,486 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,487 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:27,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:27,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:27,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,567 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,567 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,567 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:27,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 15:59:27,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:27,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,649 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:27,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:27,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:27,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:27,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:27,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,762 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,763 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:27,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:27,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:27,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:27,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:27,875 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:27,875 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:27,876 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:27,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:27,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:27,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:27,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:27,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:27,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:27,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:27,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:27,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-09-24 15:59:28,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952349885] [2020-09-24 15:59:28,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:28,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-09-24 15:59:28,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363023975] [2020-09-24 15:59:28,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-24 15:59:28,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:28,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-24 15:59:28,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-24 15:59:28,066 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 31 states. [2020-09-24 15:59:29,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:29,175 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-24 15:59:29,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-24 15:59:29,176 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 107 [2020-09-24 15:59:29,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:29,177 INFO L225 Difference]: With dead ends: 79 [2020-09-24 15:59:29,177 INFO L226 Difference]: Without dead ends: 74 [2020-09-24 15:59:29,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=115, Invalid=1865, Unknown=0, NotChecked=0, Total=1980 [2020-09-24 15:59:29,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-24 15:59:29,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-24 15:59:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-24 15:59:29,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-09-24 15:59:29,192 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 107 [2020-09-24 15:59:29,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:29,193 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-09-24 15:59:29,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-24 15:59:29,193 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-09-24 15:59:29,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-24 15:59:29,194 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:29,194 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:29,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 15:59:29,197 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:29,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:29,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1701157728, now seen corresponding path program 14 times [2020-09-24 15:59:29,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:29,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379384268] [2020-09-24 15:59:29,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,373 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,374 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,374 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 15:59:29,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-24 15:59:29,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-24 15:59:29,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-24 15:59:29,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 15:59:29,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,421 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,422 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,422 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:29,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:59:29,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:29,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,551 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,551 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,551 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,551 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 15:59:29,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 15:59:29,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 15:59:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,693 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,693 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,693 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,693 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 15:59:29,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 15:59:29,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 15:59:29,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:29,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,837 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,838 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,838 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 15:59:29,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 15:59:29,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 15:59:29,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:29,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:29,992 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:29,992 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:29,993 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:29,993 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:29,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 15:59:29,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:29,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 15:59:29,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:29,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:29,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 15:59:29,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,143 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,143 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,144 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:30,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-24 15:59:30,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:30,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:30,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,271 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,271 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 15:59:30,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 15:59:30,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:30,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,385 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,385 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:30,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:59:30,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:30,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:30,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:30,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,484 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,484 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,484 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,485 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:30,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:30,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:30,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:30,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,580 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,581 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:30,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:30,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:30,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:30,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:30,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 15:59:30,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:30,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:30,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,795 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,796 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,796 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,796 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:30,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:59:30,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:30,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:30,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,891 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,891 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,891 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,892 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:30,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:30,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:30,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:30,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:30,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:30,988 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:30,988 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:30,988 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:30,989 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:30,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:30,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:30,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:30,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:30,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:30,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:30,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:30,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:31,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,096 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,097 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,097 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,098 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:31,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:31,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:31,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:31,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:31,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:31,250 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:31,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:31,251 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:31,251 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:31,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:31,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:31,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:59:31,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:31,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:31,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:31,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:31,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:31,355 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-09-24 15:59:31,355 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379384268] [2020-09-24 15:59:31,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:31,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-09-24 15:59:31,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7006521] [2020-09-24 15:59:31,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-09-24 15:59:31,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:31,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-09-24 15:59:31,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 15:59:31,357 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand 33 states. [2020-09-24 15:59:32,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:32,512 INFO L93 Difference]: Finished difference Result 83 states and 84 transitions. [2020-09-24 15:59:32,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-09-24 15:59:32,513 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 114 [2020-09-24 15:59:32,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:32,514 INFO L225 Difference]: With dead ends: 83 [2020-09-24 15:59:32,514 INFO L226 Difference]: Without dead ends: 78 [2020-09-24 15:59:32,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=123, Invalid=2133, Unknown=0, NotChecked=0, Total=2256 [2020-09-24 15:59:32,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-24 15:59:32,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-24 15:59:32,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-24 15:59:32,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-24 15:59:32,523 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 114 [2020-09-24 15:59:32,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:32,524 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-24 15:59:32,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-09-24 15:59:32,524 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-24 15:59:32,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-24 15:59:32,529 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:32,529 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:32,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 15:59:32,530 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:32,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:32,530 INFO L82 PathProgramCache]: Analyzing trace with hash -751861855, now seen corresponding path program 15 times [2020-09-24 15:59:32,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:32,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341062577] [2020-09-24 15:59:32,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,686 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,687 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,687 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-09-24 15:59:32,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 15:59:32,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-24 15:59:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-09-24 15:59:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 15:59:32,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:32,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,741 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,742 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:32,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:32,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:32,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:32,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:32,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:32,892 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:32,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:32,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:32,893 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:32,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-24 15:59:32,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:32,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 15:59:32,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:32,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:32,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:32,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:32,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,065 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,066 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 15:59:33,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 15:59:33,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 15:59:33,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,220 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,220 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 15:59:33,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-24 15:59:33,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 15:59:33,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:33,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,383 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,383 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,383 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 15:59:33,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 15:59:33,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:33,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 15:59:33,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,514 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,514 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 15:59:33,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 15:59:33,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:33,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 15:59:33,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:33,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 15:59:33,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:33,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,752 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 15:59:33,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:59:33,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:33,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:33,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,866 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,867 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,867 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:33,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:59:33,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:33,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:33,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:33,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:33,978 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:33,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:33,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:33,979 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:33,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:33,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:33,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:33,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:33,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:33,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:33,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,094 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,095 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,095 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,095 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:34,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:34,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:34,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:34,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,237 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,237 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:34,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 15:59:34,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:34,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:34,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:34,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 15:59:34,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:34,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:34,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,488 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,488 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,489 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:34,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:59:34,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:34,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,616 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,616 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,616 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,617 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:34,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:34,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:34,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:34,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,711 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,711 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,711 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,712 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:34,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:34,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:34,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:34,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:34,812 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:34,812 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:34,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:34,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:34,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:34,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:34,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:34,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:34,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:34,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:34,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:34,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-09-24 15:59:34,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341062577] [2020-09-24 15:59:34,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:34,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-09-24 15:59:34,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053004814] [2020-09-24 15:59:34,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-09-24 15:59:34,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:34,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-09-24 15:59:34,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 15:59:34,963 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 35 states. [2020-09-24 15:59:36,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:36,174 INFO L93 Difference]: Finished difference Result 87 states and 88 transitions. [2020-09-24 15:59:36,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-09-24 15:59:36,180 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 121 [2020-09-24 15:59:36,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:36,181 INFO L225 Difference]: With dead ends: 87 [2020-09-24 15:59:36,181 INFO L226 Difference]: Without dead ends: 82 [2020-09-24 15:59:36,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=131, Invalid=2419, Unknown=0, NotChecked=0, Total=2550 [2020-09-24 15:59:36,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-24 15:59:36,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-09-24 15:59:36,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-24 15:59:36,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 83 transitions. [2020-09-24 15:59:36,190 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 83 transitions. Word has length 121 [2020-09-24 15:59:36,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:36,191 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 83 transitions. [2020-09-24 15:59:36,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-09-24 15:59:36,191 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 83 transitions. [2020-09-24 15:59:36,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-24 15:59:36,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:36,196 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:36,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 15:59:36,196 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:36,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:36,196 INFO L82 PathProgramCache]: Analyzing trace with hash 2017083634, now seen corresponding path program 16 times [2020-09-24 15:59:36,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:36,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581126686] [2020-09-24 15:59:36,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,369 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,370 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,370 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,370 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-24 15:59:36,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 15:59:36,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-09-24 15:59:36,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-24 15:59:36,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-24 15:59:36,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:36,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,421 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,421 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,421 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,422 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:36,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:36,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:36,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:36,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,556 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,556 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,556 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:36,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-24 15:59:36,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:36,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-24 15:59:36,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:36,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:36,794 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:36,794 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:36,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:36,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:36,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-24 15:59:36,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:36,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-24 15:59:36,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:36,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:36,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,026 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,026 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,027 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,027 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 15:59:37,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-24 15:59:37,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 15:59:37,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:37,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,193 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 15:59:37,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 15:59:37,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:37,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 15:59:37,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:37,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,334 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 15:59:37,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 15:59:37,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:37,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 15:59:37,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:37,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,480 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,480 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,481 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,481 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 15:59:37,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-24 15:59:37,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 15:59:37,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,637 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,637 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:37,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 15:59:37,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:37,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:37,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,764 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,765 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,765 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,765 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 15:59:37,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 15:59:37,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:37,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:37,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:37,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:37,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:37,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:37,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:37,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:37,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:37,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:37,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 15:59:37,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:37,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:37,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:37,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:37,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:37,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,008 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,008 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,008 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,009 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:38,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 15:59:38,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:38,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:38,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,141 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,141 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,141 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,142 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:38,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 15:59:38,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:38,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:38,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:38,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,240 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,241 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,241 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,241 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:38,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:38,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:38,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:38,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:38,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,336 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,337 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,337 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,338 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:38,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:59:38,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:38,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:38,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:38,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,442 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,443 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,443 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,443 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:38,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:38,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:38,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:38,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:38,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,544 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,544 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,544 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,544 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:38,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:38,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:38,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 15:59:38,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,663 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:38,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:38,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:38,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:38,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:38,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:38,776 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:38,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:38,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:38,777 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:38,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:38,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:38,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:38,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:38,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:38,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:38,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:38,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:38,943 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 0 proven. 512 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-09-24 15:59:38,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581126686] [2020-09-24 15:59:38,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:38,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-09-24 15:59:38,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111616711] [2020-09-24 15:59:38,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-09-24 15:59:38,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:38,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-09-24 15:59:38,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2020-09-24 15:59:38,945 INFO L87 Difference]: Start difference. First operand 82 states and 83 transitions. Second operand 37 states. [2020-09-24 15:59:40,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:40,403 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2020-09-24 15:59:40,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-09-24 15:59:40,404 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 128 [2020-09-24 15:59:40,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:40,406 INFO L225 Difference]: With dead ends: 91 [2020-09-24 15:59:40,406 INFO L226 Difference]: Without dead ends: 86 [2020-09-24 15:59:40,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=139, Invalid=2723, Unknown=0, NotChecked=0, Total=2862 [2020-09-24 15:59:40,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-24 15:59:40,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-09-24 15:59:40,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-24 15:59:40,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 87 transitions. [2020-09-24 15:59:40,412 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 87 transitions. Word has length 128 [2020-09-24 15:59:40,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:40,413 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 87 transitions. [2020-09-24 15:59:40,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-09-24 15:59:40,413 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2020-09-24 15:59:40,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-24 15:59:40,414 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:40,415 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:40,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 15:59:40,415 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:40,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:40,415 INFO L82 PathProgramCache]: Analyzing trace with hash -750736845, now seen corresponding path program 17 times [2020-09-24 15:59:40,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:40,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598711777] [2020-09-24 15:59:40,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:40,597 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:40,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:40,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:40,598 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:40,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-24 15:59:40,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:40,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-24 15:59:40,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:40,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-09-24 15:59:40,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-09-24 15:59:40,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:59:40,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:40,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:40,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:40,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:40,662 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:40,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:40,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:40,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:40,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:40,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:40,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:40,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:40,860 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:40,860 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:40,860 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:40,860 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:40,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-24 15:59:40,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:40,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-24 15:59:40,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:40,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-24 15:59:40,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:40,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-24 15:59:40,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:40,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,085 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,086 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:41,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-24 15:59:41,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:41,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-24 15:59:41,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:41,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,252 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,253 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,253 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,253 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-24 15:59:41,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 15:59:41,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:41,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:41,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:41,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,409 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,409 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,409 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 15:59:41,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 15:59:41,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:41,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 15:59:41,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:41,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,566 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,566 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,566 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,566 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 15:59:41,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 15:59:41,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:41,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 15:59:41,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:41,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,713 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 15:59:41,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 15:59:41,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 15:59:41,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:41,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,850 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,850 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,850 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,850 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 15:59:41,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 15:59:41,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 15:59:41,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:41,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:41,989 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:41,990 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:41,990 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:41,990 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:41,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:41,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:41,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-24 15:59:41,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:41,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:41,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:41,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:41,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:42,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,125 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,126 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,126 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,126 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 15:59:42,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 15:59:42,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:42,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:42,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:42,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,270 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,270 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,270 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:42,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 15:59:42,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:42,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:42,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,381 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,382 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,382 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,382 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:42,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:59:42,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:42,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:42,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:42,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:42,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,497 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:42,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 15:59:42,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:42,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:42,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:42,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:42,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,613 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,613 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:42,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:42,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:42,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:42,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:42,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,725 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,725 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,725 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,725 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:42,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:42,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:42,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:42,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,846 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,847 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:42,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:42,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:42,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:42,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:42,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:42,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:42,963 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:42,963 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:42,963 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:42,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:42,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:42,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:42,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:59:42,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:42,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:43,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:43,084 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:43,084 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:43,084 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:43,085 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:43,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:43,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:43,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:43,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:43,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:43,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:43,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:43,204 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:43,204 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:43,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:43,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:43,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:43,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:43,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:43,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:43,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:43,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 0 proven. 578 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-09-24 15:59:43,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598711777] [2020-09-24 15:59:43,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:43,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-09-24 15:59:43,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788618497] [2020-09-24 15:59:43,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-09-24 15:59:43,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:43,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-09-24 15:59:43,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2020-09-24 15:59:43,391 INFO L87 Difference]: Start difference. First operand 86 states and 87 transitions. Second operand 39 states. [2020-09-24 15:59:45,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:45,041 INFO L93 Difference]: Finished difference Result 95 states and 96 transitions. [2020-09-24 15:59:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-09-24 15:59:45,042 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 135 [2020-09-24 15:59:45,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:45,044 INFO L225 Difference]: With dead ends: 95 [2020-09-24 15:59:45,044 INFO L226 Difference]: Without dead ends: 90 [2020-09-24 15:59:45,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=147, Invalid=3045, Unknown=0, NotChecked=0, Total=3192 [2020-09-24 15:59:45,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-24 15:59:45,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-09-24 15:59:45,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-24 15:59:45,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 91 transitions. [2020-09-24 15:59:45,053 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 91 transitions. Word has length 135 [2020-09-24 15:59:45,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:45,053 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 91 transitions. [2020-09-24 15:59:45,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-09-24 15:59:45,053 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 91 transitions. [2020-09-24 15:59:45,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 15:59:45,055 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:45,055 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:45,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-24 15:59:45,055 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:45,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:45,056 INFO L82 PathProgramCache]: Analyzing trace with hash 112489604, now seen corresponding path program 18 times [2020-09-24 15:59:45,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:45,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [743895404] [2020-09-24 15:59:45,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,245 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,246 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:59:45,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-24 15:59:45,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-09-24 15:59:45,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-09-24 15:59:45,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:45,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:45,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,307 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,307 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,307 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,307 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:45,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:59:45,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:45,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:45,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:45,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:45,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,485 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,486 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 15:59:45,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 15:59:45,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:59:45,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:45,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-24 15:59:45,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:45,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,704 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,704 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-24 15:59:45,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 15:59:45,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-24 15:59:45,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:45,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-24 15:59:45,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:45,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:45,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:45,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:45,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:45,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:45,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:45,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:45,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 15:59:45,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:45,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:45,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:45,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-24 15:59:45,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:45,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,061 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,061 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,061 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-24 15:59:46,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 15:59:46,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:46,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:46,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 15:59:46,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 15:59:46,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 15:59:46,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:46,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,383 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 15:59:46,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 15:59:46,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:46,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 15:59:46,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:46,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,537 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,537 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 15:59:46,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 15:59:46,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 15:59:46,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:46,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,679 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 15:59:46,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 15:59:46,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:46,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 15:59:46,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:46,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,812 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,812 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:46,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:59:46,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:46,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:46,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:46,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:46,946 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:46,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:46,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:46,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:46,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 15:59:46,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:46,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:59:46,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:46,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:46,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:46,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:46,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:47,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,078 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,079 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,079 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:47,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 15:59:47,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:47,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:47,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,213 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:47,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:59:47,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:47,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:47,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:47,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,335 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,335 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:47,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 15:59:47,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:47,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:47,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:47,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,456 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,457 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:47,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:47,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:47,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:47,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:47,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,577 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,577 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,578 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:47,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:47,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:47,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:47,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:47,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,697 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,697 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,698 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:47,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:47,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:47,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:47,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:47,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,824 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,825 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,825 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:47,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:47,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:47,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:47,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:47,982 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:47,982 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:47,983 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:47,983 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:47,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:47,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:47,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:47,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:47,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:47,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:47,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:48,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:48,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:48,111 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:48,111 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:48,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:48,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:48,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:48,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:48,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:48,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:48,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:48,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:48,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:48,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-09-24 15:59:48,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [743895404] [2020-09-24 15:59:48,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:48,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-09-24 15:59:48,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958633874] [2020-09-24 15:59:48,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-09-24 15:59:48,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:48,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-09-24 15:59:48,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-09-24 15:59:48,286 INFO L87 Difference]: Start difference. First operand 90 states and 91 transitions. Second operand 41 states. [2020-09-24 15:59:50,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:50,105 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2020-09-24 15:59:50,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-09-24 15:59:50,110 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 142 [2020-09-24 15:59:50,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:50,111 INFO L225 Difference]: With dead ends: 99 [2020-09-24 15:59:50,112 INFO L226 Difference]: Without dead ends: 94 [2020-09-24 15:59:50,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=155, Invalid=3385, Unknown=0, NotChecked=0, Total=3540 [2020-09-24 15:59:50,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-24 15:59:50,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2020-09-24 15:59:50,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-09-24 15:59:50,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions. [2020-09-24 15:59:50,118 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 142 [2020-09-24 15:59:50,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:50,119 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions. [2020-09-24 15:59:50,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-09-24 15:59:50,119 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions. [2020-09-24 15:59:50,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 15:59:50,123 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:50,124 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:50,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-24 15:59:50,124 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:50,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:50,124 INFO L82 PathProgramCache]: Analyzing trace with hash 374596293, now seen corresponding path program 19 times [2020-09-24 15:59:50,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:50,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341977402] [2020-09-24 15:59:50,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:50,327 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:50,328 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:50,328 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:50,328 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:50,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 15:59:50,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:50,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-24 15:59:50,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:50,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-09-24 15:59:50,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-09-24 15:59:50,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-24 15:59:50,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:50,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:50,388 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:50,388 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:50,389 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:50,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:50,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:50,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:50,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:50,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:50,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:50,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:50,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:50,585 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:50,585 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:50,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:50,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 15:59:50,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:50,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-24 15:59:50,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:50,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-24 15:59:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:50,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-09-24 15:59:50,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:50,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:50,784 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:50,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:50,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:50,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:50,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 15:59:50,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:50,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 15:59:50,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:50,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:59:50,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:50,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-24 15:59:50,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:50,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:50,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:50,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:50,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:50,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:50,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-24 15:59:50,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:50,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 15:59:50,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:50,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-24 15:59:50,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:50,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-24 15:59:50,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:51,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,155 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,155 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,156 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,156 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:51,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 15:59:51,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:51,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-24 15:59:51,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:51,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,346 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-24 15:59:51,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 15:59:51,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:51,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:51,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:51,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,525 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,525 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,526 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 15:59:51,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 15:59:51,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:51,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 15:59:51,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:51,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,685 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 15:59:51,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 15:59:51,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 15:59:51,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:51,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:51,862 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:51,862 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:51,863 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:51,863 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:51,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 15:59:51,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:51,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-24 15:59:51,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:51,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:51,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:51,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 15:59:51,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:51,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:52,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:52,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:52,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:52,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:52,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 15:59:52,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:52,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 15:59:52,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:52,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:52,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:52,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 15:59:52,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:52,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:52,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:52,220 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:52,220 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:52,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:52,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:52,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:52,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 15:59:52,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:52,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:52,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:52,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:52,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:52,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:52,362 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:52,362 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:52,362 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:52,363 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:52,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 15:59:52,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:52,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 15:59:52,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:52,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:52,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:52,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:52,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:52,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:52,526 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:52,526 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:52,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:52,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:52,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:52,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:52,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 15:59:52,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:52,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:52,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:52,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:52,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:52,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:52,654 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:52,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:52,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:52,655 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:52,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:52,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:52,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:59:52,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:52,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:52,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:52,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:52,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:52,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:52,782 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:52,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:52,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:52,783 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:52,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:52,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:52,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 15:59:52,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:52,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:52,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:52,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:52,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:52,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:52,907 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:52,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:52,908 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:52,908 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:52,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:52,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:52,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 15:59:52,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:52,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:52,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:52,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:52,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:53,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:53,033 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:53,033 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:53,033 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:53,033 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:53,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:53,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:53,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:53,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:53,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:53,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:53,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:53,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:53,159 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:53,160 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:53,160 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:53,160 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:53,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:53,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:53,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:59:53,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:53,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:53,288 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:53,288 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:53,289 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:53,289 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:53,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:53,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:53,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:53,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:53,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:53,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:53,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:53,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:53,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:53,418 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:53,418 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:53,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:53,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:53,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:53,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:53,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:53,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:53,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:53,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:53,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:53,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:53,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:53,553 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:53,554 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:53,554 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:53,554 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:53,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:53,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:53,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:53,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:53,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:53,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:53,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:53,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:53,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 0 proven. 722 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-09-24 15:59:53,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341977402] [2020-09-24 15:59:53,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:53,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-09-24 15:59:53,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647535431] [2020-09-24 15:59:53,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-09-24 15:59:53,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:53,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-09-24 15:59:53,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2020-09-24 15:59:53,751 INFO L87 Difference]: Start difference. First operand 94 states and 95 transitions. Second operand 43 states. [2020-09-24 15:59:55,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:59:55,784 INFO L93 Difference]: Finished difference Result 103 states and 104 transitions. [2020-09-24 15:59:55,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-09-24 15:59:55,784 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 149 [2020-09-24 15:59:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:59:55,786 INFO L225 Difference]: With dead ends: 103 [2020-09-24 15:59:55,786 INFO L226 Difference]: Without dead ends: 98 [2020-09-24 15:59:55,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=163, Invalid=3743, Unknown=0, NotChecked=0, Total=3906 [2020-09-24 15:59:55,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-24 15:59:55,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-09-24 15:59:55,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-24 15:59:55,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2020-09-24 15:59:55,794 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 149 [2020-09-24 15:59:55,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:59:55,794 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2020-09-24 15:59:55,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-09-24 15:59:55,794 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2020-09-24 15:59:55,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 15:59:55,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:59:55,796 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:59:55,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-24 15:59:55,797 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:59:55,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:59:55,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1900661226, now seen corresponding path program 20 times [2020-09-24 15:59:55,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:59:55,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690938450] [2020-09-24 15:59:55,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:59:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:56,012 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:56,013 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:56,013 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:56,013 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:56,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 15:59:56,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:56,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-24 15:59:56,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-09-24 15:59:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-09-24 15:59:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 15:59:56,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:56,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:59:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:56,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:56,060 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:56,060 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:56,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:56,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:59:56,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:59:56,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:59:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:59:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:56,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 15:59:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:56,244 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:56,245 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:56,245 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:56,245 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:56,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-09-24 15:59:56,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:56,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-24 15:59:56,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:56,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 15:59:56,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:56,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-09-24 15:59:56,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:56,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:56,468 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:56,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:56,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:56,469 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:56,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 15:59:56,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:56,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-24 15:59:56,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:56,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-24 15:59:56,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:56,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-09-24 15:59:56,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:56,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:56,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:56,674 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:56,674 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:56,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:56,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 15:59:56,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:56,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 15:59:56,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:56,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 15:59:56,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:56,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-24 15:59:56,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:56,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:56,874 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:56,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:56,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:56,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:56,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-24 15:59:56,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:56,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 15:59:56,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:56,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-09-24 15:59:56,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:56,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 159 [2020-09-24 15:59:56,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:56,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:57,070 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:57,071 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:57,071 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:57,071 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:57,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-24 15:59:57,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:57,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 15:59:57,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:57,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-09-24 15:59:57,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:57,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-24 15:59:57,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:57,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:57,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:57,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:57,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:57,279 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:57,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-24 15:59:57,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:57,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 15:59:57,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-24 15:59:57,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:57,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-09-24 15:59:57,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:57,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:57,452 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:57,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:57,452 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:57,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:57,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-24 15:59:57,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:57,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 15:59:57,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:57,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-24 15:59:57,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:57,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-24 15:59:57,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:57,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:57,611 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:57,611 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:57,612 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:57,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:57,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-24 15:59:57,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:57,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 15:59:57,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:57,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-24 15:59:57,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-24 15:59:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:57,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:57,767 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:57,768 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:57,768 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:57,768 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:57,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-24 15:59:57,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:57,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 15:59:57,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:57,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-24 15:59:57,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:57,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-24 15:59:57,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:57,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:57,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:57,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:57,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:57,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:57,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-24 15:59:57,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:57,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 15:59:57,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-24 15:59:57,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:57,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 15:59:57,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:58,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,071 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,071 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,071 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-24 15:59:58,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:59:58,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-24 15:59:58,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 15:59:58,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:58,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-24 15:59:58,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 15:59:58,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-24 15:59:58,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-24 15:59:58,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:58,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,351 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,351 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,351 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-24 15:59:58,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 15:59:58,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-24 15:59:58,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:59:58,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:58,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,486 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,486 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-24 15:59:58,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 15:59:58,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 15:59:58,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 15:59:58,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:58,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,618 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,618 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,618 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,619 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 15:59:58,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 15:59:58,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 15:59:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 15:59:58,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:58,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 15:59:58,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 15:59:58,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-24 15:59:58,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 15:59:58,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:58,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:58,884 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:58,885 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:58,885 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:58,885 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:58,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-24 15:59:58,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:58,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:59:58,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:58,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 15:59:58,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:58,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 15:59:58,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:59,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:59,019 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:59,019 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:59,019 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:59,019 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:59,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 15:59:59,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:59,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:59:59,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:59,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 15:59:59,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:59,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 15:59:59,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:59,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:59,149 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:59,150 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:59,150 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:59,150 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:59,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 15:59:59,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:59,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:59:59,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:59,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 15:59:59,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:59,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-24 15:59:59,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:59,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:59,289 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:59,289 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:59,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:59,290 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:59,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-24 15:59:59,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:59,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:59:59,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:59:59,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:59,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 15:59:59,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:59:59,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:59:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:59:59,429 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:59:59,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:59:59,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:59:59,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:59:59,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:59:59,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:59:59,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:59:59,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:59:59,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 15:59:59,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:59:59,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:59:59,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:59:59,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 0 proven. 800 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-09-24 15:59:59,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690938450] [2020-09-24 15:59:59,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 15:59:59,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-09-24 15:59:59,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234081745] [2020-09-24 15:59:59,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-09-24 15:59:59,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:59:59,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-09-24 15:59:59,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980 [2020-09-24 15:59:59,676 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand 45 states. [2020-09-24 16:00:01,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:00:01,880 INFO L93 Difference]: Finished difference Result 107 states and 108 transitions. [2020-09-24 16:00:01,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-09-24 16:00:01,880 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 156 [2020-09-24 16:00:01,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:00:01,881 INFO L225 Difference]: With dead ends: 107 [2020-09-24 16:00:01,882 INFO L226 Difference]: Without dead ends: 102 [2020-09-24 16:00:01,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=171, Invalid=4119, Unknown=0, NotChecked=0, Total=4290 [2020-09-24 16:00:01,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-09-24 16:00:01,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-09-24 16:00:01,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-09-24 16:00:01,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 103 transitions. [2020-09-24 16:00:01,888 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 103 transitions. Word has length 156 [2020-09-24 16:00:01,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:00:01,889 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 103 transitions. [2020-09-24 16:00:01,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-09-24 16:00:01,889 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 103 transitions. [2020-09-24 16:00:01,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 16:00:01,891 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:00:01,891 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:00:01,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-24 16:00:01,891 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:00:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:00:01,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1591006889, now seen corresponding path program 21 times [2020-09-24 16:00:01,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:00:01,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987981617] [2020-09-24 16:00:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:00:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:02,135 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:02,136 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:02,136 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:02,136 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:02,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-24 16:00:02,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:02,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-24 16:00:02,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:02,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-09-24 16:00:02,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-09-24 16:00:02,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-24 16:00:02,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:02,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:00:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:02,192 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:02,193 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:02,193 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:02,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:02,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:00:02,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:02,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 16:00:02,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:02,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:00:02,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:02,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:00:02,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:02,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-24 16:00:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:02,434 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:02,434 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:02,434 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:02,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:02,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 16:00:02,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:02,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-09-24 16:00:02,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-09-24 16:00:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-09-24 16:00:02,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:00:02,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:00:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:02,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:02,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:02,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:02,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:02,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-09-24 16:00:02,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:02,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-09-24 16:00:02,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:02,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-09-24 16:00:02,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:02,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-09-24 16:00:02,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:02,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:00:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:03,082 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:03,083 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:03,083 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:03,084 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:03,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 16:00:03,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:03,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-24 16:00:03,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:03,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-09-24 16:00:03,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:03,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 177 [2020-09-24 16:00:03,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:03,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:00:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:00:03,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 16:00:03,399 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 16:00:03,400 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 16:00:03,400 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:00:03,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:00:03,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:00:03,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-24 16:00:03,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 16:00:03,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-09-24 16:00:03,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:00:03,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-09-24 16:00:03,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:00:03,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:00:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat