/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=DEEPEST --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_10-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:52:46,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:52:46,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:52:46,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:52:46,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:52:46,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:52:46,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:52:46,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:52:46,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:52:46,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:52:46,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:52:46,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:52:46,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:52:46,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:52:46,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:52:46,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:52:46,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:52:46,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:52:46,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:52:46,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:52:46,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:52:46,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:52:46,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:52:46,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:52:46,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:52:46,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:52:46,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:52:46,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:52:46,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:52:46,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:52:46,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:52:46,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:52:46,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:52:46,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:52:46,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:52:46,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:52:47,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:52:47,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:52:47,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:52:47,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:52:47,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:52:47,005 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 00:52:47,053 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:52:47,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:52:47,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:52:47,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:52:47,056 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:52:47,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:52:47,057 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:52:47,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:52:47,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:52:47,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:52:47,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:52:47,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:52:47,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:52:47,060 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:52:47,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:52:47,060 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:52:47,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:52:47,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:52:47,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:52:47,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:52:47,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:52:47,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:52:47,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:52:47,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:52:47,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:52:47,063 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:52:47,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:52:47,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:52:47,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:52:47,064 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:52:47,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:52:47,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:52:47,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:52:47,531 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:52:47,531 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:52:47,533 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_10-2.c [2020-09-25 00:52:47,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b2011666/b5caad1004fb490bbecae1fa8f794714/FLAGfc3eaad41 [2020-09-25 00:52:48,108 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:52:48,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_10-2.c [2020-09-25 00:52:48,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b2011666/b5caad1004fb490bbecae1fa8f794714/FLAGfc3eaad41 [2020-09-25 00:52:48,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5b2011666/b5caad1004fb490bbecae1fa8f794714 [2020-09-25 00:52:48,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:52:48,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:52:48,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:52:48,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:52:48,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:52:48,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:52:48" (1/1) ... [2020-09-25 00:52:48,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@457b3941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:48, skipping insertion in model container [2020-09-25 00:52:48,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:52:48" (1/1) ... [2020-09-25 00:52:48,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:52:48,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:52:48,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:52:48,764 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:52:48,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:52:48,797 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:52:48,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:48 WrapperNode [2020-09-25 00:52:48,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:52:48,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:52:48,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:52:48,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:52:48,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:48" (1/1) ... [2020-09-25 00:52:48,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:48" (1/1) ... [2020-09-25 00:52:48,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:48" (1/1) ... [2020-09-25 00:52:48,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:48" (1/1) ... [2020-09-25 00:52:48,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:48" (1/1) ... [2020-09-25 00:52:48,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:48" (1/1) ... [2020-09-25 00:52:48,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:48" (1/1) ... [2020-09-25 00:52:48,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:52:48,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:52:48,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:52:48,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:52:48,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:48" (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 00:52:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:52:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:52:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 00:52:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:52:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:52:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:52:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 00:52:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:52:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:52:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:52:49,210 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:52:49,210 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:52:49,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:52:49 BoogieIcfgContainer [2020-09-25 00:52:49,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:52:49,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:52:49,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:52:49,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:52:49,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:52:48" (1/3) ... [2020-09-25 00:52:49,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d98cb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:52:49, skipping insertion in model container [2020-09-25 00:52:49,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:52:48" (2/3) ... [2020-09-25 00:52:49,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d98cb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:52:49, skipping insertion in model container [2020-09-25 00:52:49,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:52:49" (3/3) ... [2020-09-25 00:52:49,227 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_10-2.c [2020-09-25 00:52:49,239 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:52:49,250 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:52:49,271 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:52:49,301 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:52:49,302 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:52:49,302 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:52:49,302 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:52:49,302 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:52:49,302 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:52:49,303 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:52:49,303 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:52:49,324 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 00:52:49,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 00:52:49,332 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:49,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:49,334 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:49,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:49,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 00:52:49,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:49,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100876864] [2020-09-25 00:52:49,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:49,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:49,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:49,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 00:52:49,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:49,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 00:52:49,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:49,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:52:49,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:52:49,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 00:52:49,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:49,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:49,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:49,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:49,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:49,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:49,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:49,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:49,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:49,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:49,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:49,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:52:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:49,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:49,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:49,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:49,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:49,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 00:52:49,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:49,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:49,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:49,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:49,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:49,705 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 00:52:49,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100876864] [2020-09-25 00:52:49,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:52:49,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:52:49,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663435359] [2020-09-25 00:52:49,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:52:49,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:49,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:52:49,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:52:49,746 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 00:52:49,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:49,861 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 00:52:49,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:52:49,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 00:52:49,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:49,877 INFO L225 Difference]: With dead ends: 44 [2020-09-25 00:52:49,877 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 00:52:49,881 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 00:52:49,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 00:52:49,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 00:52:49,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 00:52:49,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 00:52:49,937 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 00:52:49,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:49,938 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 00:52:49,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:52:49,939 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 00:52:49,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 00:52:49,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:49,941 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 00:52:49,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:52:49,942 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:49,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:49,942 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 00:52:49,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:49,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146342220] [2020-09-25 00:52:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:49,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:50,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 00:52:50,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:50,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 00:52:50,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:50,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:50,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:52:50,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:50,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:50,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:50,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:50,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:50,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:50,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:52:50,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:50,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:50,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:50,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:50,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:50,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:52:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:50,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:50,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:50,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:50,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 00:52:50,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:50,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:50,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:50,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:50,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:50,185 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 00:52:50,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146342220] [2020-09-25 00:52:50,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:52:50,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:52:50,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059080257] [2020-09-25 00:52:50,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:52:50,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:50,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:52:50,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:52:50,190 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 00:52:50,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:50,331 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 00:52:50,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:52:50,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 00:52:50,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:50,334 INFO L225 Difference]: With dead ends: 36 [2020-09-25 00:52:50,334 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 00:52:50,337 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 00:52:50,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 00:52:50,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 00:52:50,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 00:52:50,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 00:52:50,346 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 00:52:50,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:50,346 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 00:52:50,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:52:50,349 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 00:52:50,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 00:52:50,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:50,351 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:50,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:52:50,351 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:50,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:50,353 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 00:52:50,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:50,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785180573] [2020-09-25 00:52:50,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:50,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:50,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 00:52:50,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:50,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 571 [2020-09-25 00:52:50,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 00:52:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:50,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:50,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:50,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:50,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:50,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:50,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:50,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:52:50,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:50,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:50,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:50,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:50,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:50,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:52:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:50,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:51,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:51,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 00:52:51,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:51,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 00:52:51,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:51,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:51,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 00:52:51,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:51,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:51,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:51,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:51,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:51,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:51,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:51,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 00:52:51,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:51,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:52:51,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:51,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 00:52:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:51,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:51,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:51,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:51,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:51,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 00:52:51,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 00:52:51,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:51,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:52:51,172 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 00:52:51,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785180573] [2020-09-25 00:52:51,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:51,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 00:52:51,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674294889] [2020-09-25 00:52:51,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:52:51,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:51,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:52:51,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:52:51,181 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 00:52:51,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:51,304 INFO L93 Difference]: Finished difference Result 52 states and 63 transitions. [2020-09-25 00:52:51,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:52:51,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 00:52:51,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:51,306 INFO L225 Difference]: With dead ends: 52 [2020-09-25 00:52:51,306 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 00:52:51,307 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:52:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 00:52:51,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 00:52:51,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 00:52:51,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-09-25 00:52:51,327 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 33 [2020-09-25 00:52:51,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:51,328 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-09-25 00:52:51,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:52:51,328 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-09-25 00:52:51,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 00:52:51,333 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:51,333 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-25 00:52:51,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:52:51,333 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:51,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:51,335 INFO L82 PathProgramCache]: Analyzing trace with hash -643371531, now seen corresponding path program 1 times [2020-09-25 00:52:51,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:51,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779929772] [2020-09-25 00:52:51,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:51,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:51,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:51,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:51,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 00:52:51,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:51,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-09-25 00:52:51,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:51,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:51,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:52:51,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 00:52:51,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:51,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:51,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:51,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:51,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:51,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:51,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:51,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:51,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:51,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:51,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:51,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:51,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:52:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:51,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:51,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:52,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:52,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-09-25 00:52:52,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:52:52,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:52,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:52,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:52:52,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:52,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:52,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:52,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:52,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:52:52,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:52,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:52,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:52,263 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 00:52:52,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779929772] [2020-09-25 00:52:52,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:52,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 00:52:52,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566734744] [2020-09-25 00:52:52,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:52:52,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:52,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:52:52,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:52:52,269 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 7 states. [2020-09-25 00:52:52,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:52,362 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2020-09-25 00:52:52,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:52:52,363 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-09-25 00:52:52,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:52,365 INFO L225 Difference]: With dead ends: 42 [2020-09-25 00:52:52,365 INFO L226 Difference]: Without dead ends: 36 [2020-09-25 00:52:52,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:52:52,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-25 00:52:52,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2020-09-25 00:52:52,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-25 00:52:52,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2020-09-25 00:52:52,374 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 34 [2020-09-25 00:52:52,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:52,375 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2020-09-25 00:52:52,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:52:52,375 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2020-09-25 00:52:52,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 00:52:52,377 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:52,377 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:52,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:52:52,377 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:52,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:52,378 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 00:52:52,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:52,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210988181] [2020-09-25 00:52:52,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 00:52:52,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:52:52,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-09-25 00:52:52,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:52,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 00:52:52,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:52:52,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:52,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:52,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:52,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:52,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:52,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:52,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:52:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 00:52:52,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:52,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 00:52:52,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:52,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:52:52,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:52:52,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:52,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:52,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:52,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:52,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:52,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:52,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:52:52,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:52,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:52,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:52,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:53,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:53,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:53,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:53,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:53,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:52:53,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 00:52:53,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:53,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:52:53,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:53,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:52:53,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:52:53,072 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 00:52:53,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210988181] [2020-09-25 00:52:53,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:53,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 00:52:53,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793970209] [2020-09-25 00:52:53,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 00:52:53,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:53,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 00:52:53,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:52:53,076 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 6 states. [2020-09-25 00:52:53,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:53,216 INFO L93 Difference]: Finished difference Result 72 states and 93 transitions. [2020-09-25 00:52:53,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:52:53,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 00:52:53,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:53,219 INFO L225 Difference]: With dead ends: 72 [2020-09-25 00:52:53,219 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 00:52:53,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:52:53,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 00:52:53,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2020-09-25 00:52:53,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 00:52:53,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-09-25 00:52:53,230 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 35 [2020-09-25 00:52:53,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:53,231 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-09-25 00:52:53,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 00:52:53,231 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-09-25 00:52:53,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 00:52:53,233 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:53,233 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 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] [2020-09-25 00:52:53,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:52:53,234 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:53,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:53,234 INFO L82 PathProgramCache]: Analyzing trace with hash 99184320, now seen corresponding path program 2 times [2020-09-25 00:52:53,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:53,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2842700] [2020-09-25 00:52:53,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:53,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:53,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:55,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 00:52:55,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:55,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2084 [2020-09-25 00:52:55,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 00:52:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 00:52:55,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:55,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:52:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:55,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:55,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:52:55,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:55,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:52:55,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:55,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:55,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:55,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:55,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:55,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:52:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:55,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:55,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:57,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:52:57,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:52:57,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1968 [2020-09-25 00:52:57,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:57,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:52:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:52:57,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 00:52:57,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:57,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:57,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:57,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:52:57,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:57,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 00:52:57,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:57,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:52:57,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:57,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:52:57,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:57,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:52:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:57,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:57,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:57,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:57,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:52:57,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:57,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:57,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:52:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:57,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:57,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:52:57,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:57,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:52:57,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:57,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:52:57,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:57,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:52:57,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:57,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:52:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:57,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:52:57,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:52:57,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:52:57,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 00:52:57,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:52:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:52:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:52:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:52:57,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:52:57,511 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 24 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 00:52:57,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2842700] [2020-09-25 00:52:57,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:52:57,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 00:52:57,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925704035] [2020-09-25 00:52:57,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 00:52:57,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:52:57,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 00:52:57,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 00:52:57,516 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 7 states. [2020-09-25 00:52:57,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:52:57,662 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-25 00:52:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 00:52:57,663 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-09-25 00:52:57,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:52:57,664 INFO L225 Difference]: With dead ends: 50 [2020-09-25 00:52:57,664 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 00:52:57,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:52:57,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 00:52:57,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2020-09-25 00:52:57,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 00:52:57,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-09-25 00:52:57,683 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 52 [2020-09-25 00:52:57,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:52:57,684 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-09-25 00:52:57,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 00:52:57,685 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-09-25 00:52:57,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 00:52:57,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:52:57,688 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:52:57,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:52:57,689 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:52:57,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:52:57,689 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 3 times [2020-09-25 00:52:57,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:52:57,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732829433] [2020-09-25 00:52:57,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:52:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:52:57,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:57,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:52:58,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:01,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:01,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:02,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:02,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 00:53:02,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 00:53:02,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 00:53:02,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:02,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 00:53:02,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 00:53:02,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 00:53:02,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:02,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:53:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:02,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:02,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:02,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:53:02,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:02,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:53:02,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:02,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:02,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:02,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:02,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:02,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:53:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:02,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:02,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:02,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:02,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:02,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:03,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:03,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:03,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:04,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:07,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:07,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 00:53:07,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 00:53:07,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 00:53:07,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:07,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:53:07,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:53:07,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 00:53:07,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:07,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:07,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:07,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:07,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:07,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:53:07,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:53:07,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-09-25 00:53:07,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:07,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:53:07,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:07,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:53:07,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:07,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:07,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:07,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:07,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:53:07,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:07,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 00:53:07,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:07,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:53:07,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:07,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:53:08,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:08,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:53:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:08,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:08,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:08,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:53:08,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:08,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 00:53:08,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:08,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:53:08,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:08,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:53:08,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:08,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:53:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:08,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:08,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:08,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:08,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:08,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:08,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:10,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:10,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:53:10,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:53:10,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2581 [2020-09-25 00:53:10,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:53:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:53:10,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 00:53:10,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:10,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:10,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:10,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:10,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:53:10,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:10,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 00:53:10,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:10,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:53:10,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:10,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:53:10,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:10,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:10,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:10,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:10,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:53:10,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:10,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:53:10,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:10,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:10,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:10,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:10,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:10,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:53:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:10,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:10,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:10,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:53:10,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:10,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:53:10,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:10,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:10,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:10,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:53:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:10,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:10,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:10,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:10,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:53:10,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:53:10,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 00:53:10,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:10,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:53:10,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:10,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:53:10,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:53:10,844 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 77 proven. 69 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-09-25 00:53:10,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732829433] [2020-09-25 00:53:10,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:53:10,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:53:10,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757487169] [2020-09-25 00:53:10,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:53:10,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:53:10,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:53:10,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:53:10,850 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 10 states. [2020-09-25 00:53:11,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:53:11,261 INFO L93 Difference]: Finished difference Result 91 states and 124 transitions. [2020-09-25 00:53:11,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:53:11,262 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-09-25 00:53:11,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:53:11,265 INFO L225 Difference]: With dead ends: 91 [2020-09-25 00:53:11,266 INFO L226 Difference]: Without dead ends: 59 [2020-09-25 00:53:11,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-09-25 00:53:11,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-25 00:53:11,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-25 00:53:11,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-25 00:53:11,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2020-09-25 00:53:11,296 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 87 [2020-09-25 00:53:11,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:53:11,296 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2020-09-25 00:53:11,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:53:11,298 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2020-09-25 00:53:11,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-25 00:53:11,302 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:53:11,302 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:53:11,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:53:11,306 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:53:11,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:53:11,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1108116753, now seen corresponding path program 4 times [2020-09-25 00:53:11,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:53:11,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66260032] [2020-09-25 00:53:11,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:53:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:11,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:11,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:11,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:11,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:11,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:11,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:11,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:11,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:12,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:13,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:13,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:15,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:16,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:16,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-25 00:53:16,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 00:53:16,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 00:53:16,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:16,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:53:16,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 00:53:16,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:53:16,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:16,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:53:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:16,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:16,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:16,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:53:16,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:16,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:53:16,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:16,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:16,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:53:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:16,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:16,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:16,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:16,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:16,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:16,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:16,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:16,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:16,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:16,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:18,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:21,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:21,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:21,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:21,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 00:53:21,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 00:53:21,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 00:53:21,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:53:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 00:53:21,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:53:21,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:21,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:21,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:21,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:21,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:21,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:22,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 00:53:22,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:53:22,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 880 [2020-09-25 00:53:22,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:22,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:53:22,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:53:22,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:53:22,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:22,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:22,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:22,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:53:22,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:53:22,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 00:53:22,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:53:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:22,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:53:22,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:22,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:22,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:22,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:53:22,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:53:22,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 00:53:22,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:53:22,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:22,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:53:22,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:22,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:53:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:22,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:22,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:53:22,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:22,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 00:53:22,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:53:22,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:22,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:53:22,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:22,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:53:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:22,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:22,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:53:22,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:22,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:53:22,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:53:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:53:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:53:22,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:22,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 00:53:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:22,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:22,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:23,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:23,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:23,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:26,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:27,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:27,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 00:53:27,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 00:53:27,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 00:53:27,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:27,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:27,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 00:53:27,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:27,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:27,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:27,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:27,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:27,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:27,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:27,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:28,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:28,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 00:53:28,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:53:28,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1212 [2020-09-25 00:53:28,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:28,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:53:28,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:53:28,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 00:53:28,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:28,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:28,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:28,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:28,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:29,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:53:29,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:53:29,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 00:53:29,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:29,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 00:53:29,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:29,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:53:29,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:29,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:29,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:29,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:53:29,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:53:29,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 00:53:29,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:53:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:29,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 00:53:29,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:29,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:53:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:29,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:29,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:53:29,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:29,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:53:29,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:53:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:29,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:53:29,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:29,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:53:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:29,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:29,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:53:29,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:29,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:53:29,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:53:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:53:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:53:29,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:29,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 00:53:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:29,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:29,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:53:29,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:29,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:53:29,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:29,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:29,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:29,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:29,122 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 145 proven. 152 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2020-09-25 00:53:29,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66260032] [2020-09-25 00:53:29,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:53:29,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 00:53:29,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892258110] [2020-09-25 00:53:29,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:53:29,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:53:29,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:53:29,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:53:29,125 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand 10 states. [2020-09-25 00:53:29,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:53:29,275 INFO L93 Difference]: Finished difference Result 108 states and 141 transitions. [2020-09-25 00:53:29,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 00:53:29,276 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-09-25 00:53:29,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:53:29,277 INFO L225 Difference]: With dead ends: 108 [2020-09-25 00:53:29,277 INFO L226 Difference]: Without dead ends: 55 [2020-09-25 00:53:29,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-09-25 00:53:29,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-09-25 00:53:29,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-09-25 00:53:29,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 00:53:29,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2020-09-25 00:53:29,287 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 121 [2020-09-25 00:53:29,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:53:29,287 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2020-09-25 00:53:29,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:53:29,287 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2020-09-25 00:53:29,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 00:53:29,289 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:53:29,289 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:53:29,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:53:29,290 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:53:29,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:53:29,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 5 times [2020-09-25 00:53:29,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:53:29,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719958296] [2020-09-25 00:53:29,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:53:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:29,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:29,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:30,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:31,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:31,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:34,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:34,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 00:53:34,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 00:53:34,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 00:53:34,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 00:53:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 00:53:34,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 00:53:34,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:34,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:53:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:34,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:34,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:34,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:53:34,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:34,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:53:34,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:34,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:53:34,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:34,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:53:34,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:34,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 00:53:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:34,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:34,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:34,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:34,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:34,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:35,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:35,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:35,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:36,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:36,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:36,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:39,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:39,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 00:53:39,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 00:53:39,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 00:53:39,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:39,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 00:53:39,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 00:53:39,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 00:53:39,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:39,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:39,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:39,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:39,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:40,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:40,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 00:53:40,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:53:40,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1323 [2020-09-25 00:53:40,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:53:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:40,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 00:53:40,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:40,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:40,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:40,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:40,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:40,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:53:40,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:53:40,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 00:53:40,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:40,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:53:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 00:53:40,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:40,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 00:53:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:40,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:40,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:40,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:53:40,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:40,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:53:40,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:53:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:53:40,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:40,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 00:53:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:40,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:40,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:40,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:53:40,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:40,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:53:40,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:53:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:40,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:53:40,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:40,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 00:53:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:40,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:40,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:53:40,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 00:53:40,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:53:40,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 00:53:40,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:53:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:53:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:53:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:53:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:53:40,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 00:53:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:53:40,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:40,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:41,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:41,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:41,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:41,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:41,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:41,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:42,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:42,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:43,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:43,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:43,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:53:43,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking...