/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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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/fibo_2calls_8-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:45:10,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:45:10,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:45:10,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:45:10,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:45:10,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:45:10,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:45:10,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:45:10,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:45:10,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:45:10,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:45:10,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:45:10,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:45:10,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:45:10,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:45:10,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:45:10,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:45:10,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:45:10,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:45:10,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:45:10,545 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:45:10,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:45:10,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:45:10,551 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:45:10,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:45:10,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:45:10,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:45:10,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:45:10,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:45:10,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:45:10,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:45:10,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:45:10,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:45:10,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:45:10,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:45:10,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:45:10,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:45:10,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:45:10,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:45:10,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:45:10,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:45:10,569 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 [2020-09-25 07:45:10,616 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:45:10,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:45:10,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:45:10,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:45:10,619 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:45:10,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:45:10,619 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:45:10,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:45:10,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:45:10,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:45:10,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:45:10,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:45:10,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:45:10,622 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:45:10,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:45:10,622 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:45:10,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:45:10,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:45:10,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:45:10,623 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:45:10,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:45:10,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:45:10,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:45:10,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:45:10,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:45:10,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:45:10,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:45:10,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:45:10,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:45:10,625 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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;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;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:45:11,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:45:11,091 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:45:11,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:45:11,097 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:45:11,097 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:45:11,099 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-09-25 07:45:11,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/721911bb8/daf1b8033b3a4ed78a09ef4a5c4dd4d5/FLAG855fbca26 [2020-09-25 07:45:11,680 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:45:11,681 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-09-25 07:45:11,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/721911bb8/daf1b8033b3a4ed78a09ef4a5c4dd4d5/FLAG855fbca26 [2020-09-25 07:45:12,046 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/721911bb8/daf1b8033b3a4ed78a09ef4a5c4dd4d5 [2020-09-25 07:45:12,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:45:12,067 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:45:12,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:12,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:45:12,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:45:12,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:12" (1/1) ... [2020-09-25 07:45:12,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f84b4d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:12, skipping insertion in model container [2020-09-25 07:45:12,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:12" (1/1) ... [2020-09-25 07:45:12,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:45:12,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:45:12,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:12,325 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:45:12,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:12,363 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:45:12,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:12 WrapperNode [2020-09-25 07:45:12,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:12,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:45:12,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:45:12,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:45:12,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:12" (1/1) ... [2020-09-25 07:45:12,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:12" (1/1) ... [2020-09-25 07:45:12,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:12" (1/1) ... [2020-09-25 07:45:12,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:12" (1/1) ... [2020-09-25 07:45:12,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:12" (1/1) ... [2020-09-25 07:45:12,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:12" (1/1) ... [2020-09-25 07:45:12,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:12" (1/1) ... [2020-09-25 07:45:12,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:45:12,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:45:12,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:45:12,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:45:12,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:12" (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 [2020-09-25 07:45:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:45:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:45:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 07:45:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 07:45:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:45:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:45:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:45:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 07:45:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 07:45:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:45:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:45:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:45:12,824 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:45:12,824 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:45:12,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:12 BoogieIcfgContainer [2020-09-25 07:45:12,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:45:12,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:45:12,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:45:12,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:45:12,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:45:12" (1/3) ... [2020-09-25 07:45:12,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474c6dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:12, skipping insertion in model container [2020-09-25 07:45:12,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:12" (2/3) ... [2020-09-25 07:45:12,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474c6dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:12, skipping insertion in model container [2020-09-25 07:45:12,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:12" (3/3) ... [2020-09-25 07:45:12,859 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2020-09-25 07:45:12,880 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:45:12,893 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:45:12,911 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:45:12,941 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:45:12,941 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:45:12,941 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:45:12,941 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:45:12,942 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:45:12,942 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:45:12,942 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:45:12,942 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:45:12,962 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 07:45:12,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 07:45:12,969 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:12,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:12,971 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:12,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:12,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 07:45:12,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:12,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895086521] [2020-09-25 07:45:12,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:13,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:13,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:45:13,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:13,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 07:45:13,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:13,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:13,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:13,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:13,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:13,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:45:13,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:13,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:13,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:13,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:13,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:13,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:13,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:13,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:13,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:13,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:13,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:13,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:13,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:13,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:13,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:13,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:45:13,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:13,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:13,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:13,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:13,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:13,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:13,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:45:13,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895086521] [2020-09-25 07:45:13,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:13,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:13,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781833294] [2020-09-25 07:45:13,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:13,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:13,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:13,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:13,338 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 07:45:13,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:13,445 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 07:45:13,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:45:13,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 07:45:13,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:13,462 INFO L225 Difference]: With dead ends: 58 [2020-09-25 07:45:13,463 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 07:45:13,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:45:13,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 07:45:13,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 07:45:13,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:45:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:45:13,528 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 07:45:13,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:13,529 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:45:13,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:13,529 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:45:13,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 07:45:13,532 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:13,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:13,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:45:13,533 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:13,533 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 07:45:13,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:13,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289808169] [2020-09-25 07:45:13,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:13,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:13,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:45:13,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:13,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 07:45:13,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:13,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:13,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:13,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:13,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:13,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:45:13,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:13,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:13,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:13,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:13,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:13,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:13,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:13,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:13,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:13,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:13,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:13,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:13,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:13,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:13,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:13,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:45:13,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:13,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:13,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:13,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:13,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:13,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:13,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:45:13,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289808169] [2020-09-25 07:45:13,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:13,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:13,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960068924] [2020-09-25 07:45:13,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:13,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:13,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:13,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:13,765 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 07:45:13,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:13,840 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 07:45:13,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:45:13,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 07:45:13,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:13,843 INFO L225 Difference]: With dead ends: 50 [2020-09-25 07:45:13,843 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 07:45:13,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:45:13,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 07:45:13,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 07:45:13,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:45:13,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:45:13,855 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 07:45:13,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:13,855 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:45:13,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:13,856 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:45:13,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 07:45:13,858 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:13,858 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:13,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:45:13,858 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:13,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:13,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 07:45:13,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:13,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672057313] [2020-09-25 07:45:13,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:13,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:14,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 07:45:14,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:14,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 622 [2020-09-25 07:45:14,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:14,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:14,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:14,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:45:14,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:45:14,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:14,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:14,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:14,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:14,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:45:14,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:14,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:14,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:14,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:14,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:14,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:14,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:14,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:14,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:14,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:14,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 07:45:14,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:14,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:45:14,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:14,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:14,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:14,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:14,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:14,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:45:14,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:14,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:14,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:14,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:14,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:14,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:14,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:14,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:14,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:14,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:14,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:45:14,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:14,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:14,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:14,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:14,898 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:45:14,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672057313] [2020-09-25 07:45:14,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:14,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:45:14,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059513314] [2020-09-25 07:45:14,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:45:14,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:14,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:45:14,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:45:14,901 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 07:45:15,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:15,021 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 07:45:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:45:15,022 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 07:45:15,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:15,024 INFO L225 Difference]: With dead ends: 58 [2020-09-25 07:45:15,025 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 07:45:15,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:15,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 07:45:15,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 07:45:15,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 07:45:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 07:45:15,037 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 07:45:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:15,037 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 07:45:15,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:45:15,038 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 07:45:15,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 07:45:15,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:15,040 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:15,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:45:15,041 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:15,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:15,041 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 07:45:15,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:15,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50490514] [2020-09-25 07:45:15,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:15,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:15,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:15,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:15,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:15,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:15,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:45:15,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:15,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-09-25 07:45:15,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:15,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:15,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:15,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:15,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:45:15,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:15,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:15,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:15,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:15,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:15,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:15,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:45:15,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:15,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:15,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:15,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:15,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:15,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:15,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:15,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:16,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:16,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:16,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-09-25 07:45:16,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:16,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:16,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:16,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:16,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:16,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:16,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:16,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:16,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:45:16,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:16,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:16,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:16,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:16,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:16,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:16,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:16,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:45:16,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:16,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:16,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:16,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:16,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:16,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:16,100 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:45:16,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50490514] [2020-09-25 07:45:16,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:16,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 07:45:16,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454751619] [2020-09-25 07:45:16,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:45:16,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:16,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:45:16,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:45:16,103 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 07:45:16,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:16,220 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 07:45:16,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:45:16,221 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 07:45:16,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:16,223 INFO L225 Difference]: With dead ends: 110 [2020-09-25 07:45:16,224 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 07:45:16,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:16,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 07:45:16,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 07:45:16,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 07:45:16,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 07:45:16,236 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 07:45:16,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:16,237 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 07:45:16,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:45:16,237 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 07:45:16,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 07:45:16,240 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:16,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:16,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:45:16,241 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:16,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:16,241 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 07:45:16,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:16,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83545984] [2020-09-25 07:45:16,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:16,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 07:45:21,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:45:21,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:45:21,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:21,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:21,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 07:45:21,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:21,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:21,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:21,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:45:21,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:21,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:21,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:21,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:21,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:24,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 07:45:24,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:45:24,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3412 [2020-09-25 07:45:24,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:24,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:24,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:24,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:24,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 07:45:24,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:24,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:24,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:24,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:24,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:24,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-25 07:45:24,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:24,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:24,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:24,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:24,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:24,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:24,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:24,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:24,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:24,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:24,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:24,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:24,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:24,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:24,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:24,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:24,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:24,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:24,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:24,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:24,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:24,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:24,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:24,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:24,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:25,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:45:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:25,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:25,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:25,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:25,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:25,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:25,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:25,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:25,051 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:45:25,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83545984] [2020-09-25 07:45:25,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:25,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:25,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503967010] [2020-09-25 07:45:25,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:25,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:25,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:25,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:25,054 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 9 states. [2020-09-25 07:45:25,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:25,262 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2020-09-25 07:45:25,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:45:25,263 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-25 07:45:25,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:25,265 INFO L225 Difference]: With dead ends: 78 [2020-09-25 07:45:25,268 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 07:45:25,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:45:25,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 07:45:25,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 62. [2020-09-25 07:45:25,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 07:45:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2020-09-25 07:45:25,284 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 51 [2020-09-25 07:45:25,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:25,285 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2020-09-25 07:45:25,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:25,285 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2020-09-25 07:45:25,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 07:45:25,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:25,289 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:25,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:45:25,289 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:25,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:25,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1208671938, now seen corresponding path program 1 times [2020-09-25 07:45:25,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:25,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166981972] [2020-09-25 07:45:25,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:25,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:30,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 07:45:30,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 07:45:30,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:45:30,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:30,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:30,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:30,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:30,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 07:45:30,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:30,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:30,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:30,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:30,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:30,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:30,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:30,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:30,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:30,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:30,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:30,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:30,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:30,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:35,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 07:45:35,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 07:45:35,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:45:35,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:35,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:35,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:35,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:45:35,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 07:45:35,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:35,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:35,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:35,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:35,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:35,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:35,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-25 07:45:35,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:35,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:35,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:35,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:35,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 07:45:35,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:35,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:35,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:35,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:35,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:35,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:45:35,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:35,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:35,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:35,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:35,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:35,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:35,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:35,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:35,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:35,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:35,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 07:45:35,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:35,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:35,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:35,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:35,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:35,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:35,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 07:45:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:35,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:35,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:35,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:35,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-09-25 07:45:35,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:35,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:35,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:35,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:35,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:36,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:36,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:36,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:36,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:36,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:45:36,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:36,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:36,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:36,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:36,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:36,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:36,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:36,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:36,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:36,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:36,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:45:36,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:36,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:36,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:36,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:36,116 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 27 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-25 07:45:36,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166981972] [2020-09-25 07:45:36,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:36,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 07:45:36,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919904662] [2020-09-25 07:45:36,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:45:36,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:36,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:45:36,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:45:36,119 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 10 states. [2020-09-25 07:45:36,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:36,357 INFO L93 Difference]: Finished difference Result 168 states and 275 transitions. [2020-09-25 07:45:36,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:45:36,358 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 07:45:36,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:36,361 INFO L225 Difference]: With dead ends: 168 [2020-09-25 07:45:36,361 INFO L226 Difference]: Without dead ends: 112 [2020-09-25 07:45:36,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:45:36,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-25 07:45:36,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 98. [2020-09-25 07:45:36,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-09-25 07:45:36,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 142 transitions. [2020-09-25 07:45:36,386 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 142 transitions. Word has length 71 [2020-09-25 07:45:36,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:36,386 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 142 transitions. [2020-09-25 07:45:36,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:45:36,386 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 142 transitions. [2020-09-25 07:45:36,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-25 07:45:36,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:36,391 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:36,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:45:36,391 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:36,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:36,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1053318756, now seen corresponding path program 1 times [2020-09-25 07:45:36,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:36,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627358039] [2020-09-25 07:45:36,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:36,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:36,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:41,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-25 07:45:41,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 07:45:41,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 07:45:41,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:41,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:41,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:41,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 07:45:41,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:45:41,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:41,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:41,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:41,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:41,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:41,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:41,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:41,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:41,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:41,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:41,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:41,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:41,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:41,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:42,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:42,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:42,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:43,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:44,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:46,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 07:45:46,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-09-25 07:45:46,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 07:45:46,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:46,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:46,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:46,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 07:45:46,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:45:46,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:46,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:46,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:51,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:45:51,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 07:45:51,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 07:45:51,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:51,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:51,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:45:51,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:45:51,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 07:45:51,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:51,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:51,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:51,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:51,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:51,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 07:45:51,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:51,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:51,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:51,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:51,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:51,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:51,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:51,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:51,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:51,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:51,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:45:51,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:51,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:51,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:51,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:51,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:51,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:51,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:51,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:51,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:51,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:51,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:51,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:51,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:51,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:51,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:45:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:51,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:51,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:55,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:55,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 07:45:55,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 07:45:55,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4288 [2020-09-25 07:45:55,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:55,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:55,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 07:45:55,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:55,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:56,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:56,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:56,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:45:56,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 07:45:56,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:56,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:56,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:56,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:56,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:56,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:56,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:56,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:56,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:56,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:56,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:45:56,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:56,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:56,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:56,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:56,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:56,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:56,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:56,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:56,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:56,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 07:45:56,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:56,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:56,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:56,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:56,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:56,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:56,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:45:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:56,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:56,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:56,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:56,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:45:56,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:56,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:56,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:56,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:56,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:56,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:56,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-25 07:45:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:56,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:56,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:56,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:56,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 07:45:56,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:56,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:56,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 07:45:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:56,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:56,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:56,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:56,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:56,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:56,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:56,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:56,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:56,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:56,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:56,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:56,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:56,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:56,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:56,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:56,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:56,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:56,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:45:56,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:56,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:56,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:56,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:56,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:56,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:56,567 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 62 proven. 80 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-09-25 07:45:56,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627358039] [2020-09-25 07:45:56,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:56,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 07:45:56,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839708755] [2020-09-25 07:45:56,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 07:45:56,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:56,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 07:45:56,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:45:56,572 INFO L87 Difference]: Start difference. First operand 98 states and 142 transitions. Second operand 12 states. [2020-09-25 07:45:57,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:57,078 INFO L93 Difference]: Finished difference Result 235 states and 396 transitions. [2020-09-25 07:45:57,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:45:57,078 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 121 [2020-09-25 07:45:57,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:57,081 INFO L225 Difference]: With dead ends: 235 [2020-09-25 07:45:57,081 INFO L226 Difference]: Without dead ends: 143 [2020-09-25 07:45:57,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2020-09-25 07:45:57,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-09-25 07:45:57,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 131. [2020-09-25 07:45:57,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-09-25 07:45:57,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 194 transitions. [2020-09-25 07:45:57,104 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 194 transitions. Word has length 121 [2020-09-25 07:45:57,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:57,104 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 194 transitions. [2020-09-25 07:45:57,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 07:45:57,105 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 194 transitions. [2020-09-25 07:45:57,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-25 07:45:57,111 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:57,111 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:57,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:45:57,112 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:57,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:57,112 INFO L82 PathProgramCache]: Analyzing trace with hash -739464713, now seen corresponding path program 1 times [2020-09-25 07:45:57,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:57,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918188738] [2020-09-25 07:45:57,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:57,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:57,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:58,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:58,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:58,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:58,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:58,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:58,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:02,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 07:46:02,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 07:46:02,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 07:46:02,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:02,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:02,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:46:02,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 07:46:02,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 07:46:02,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:02,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:46:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:02,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:02,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:46:02,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:46:02,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:46:02,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:02,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:46:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:46:02,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:46:02,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:02,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:46:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:02,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:02,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:03,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:04,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:05,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:46:07,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-09-25 07:46:07,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 07:46:07,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 07:46:07,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:46:07,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:46:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:46:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 07:46:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 07:46:07,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:46:07,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:46:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:46:07,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:07,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:08,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:08,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:08,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:08,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:46:08,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking...