/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:23:10,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:23:10,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:23:10,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:23:10,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:23:10,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:23:10,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:23:10,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:23:10,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:23:10,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:23:10,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:23:10,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:23:10,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:23:10,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:23:10,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:23:10,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:23:10,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:23:10,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:23:10,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:23:10,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:23:10,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:23:10,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:23:10,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:23:10,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:23:10,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:23:10,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:23:10,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:23:10,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:23:10,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:23:10,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:23:10,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:23:10,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:23:10,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:23:10,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:23:10,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:23:10,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:23:10,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:23:10,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:23:10,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:23:10,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:23:10,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:23:10,997 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 [2020-09-21 12:23:11,042 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:23:11,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:23:11,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:23:11,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:23:11,045 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:23:11,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:23:11,046 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:23:11,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:23:11,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:23:11,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:23:11,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:23:11,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:23:11,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:23:11,048 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:23:11,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:23:11,049 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:23:11,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:23:11,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:23:11,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:23:11,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:23:11,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:23:11,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:23:11,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:23:11,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:23:11,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:23:11,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:23:11,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:23:11,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:23:11,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:23:11,052 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.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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:23:11,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:23:11,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:23:11,518 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:23:11,521 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:23:11,522 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:23:11,523 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-09-21 12:23:11,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d6f8f457/e0a9073418f44f3e8ace5c64a0a0708e/FLAG62decf5b7 [2020-09-21 12:23:12,145 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:23:12,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-09-21 12:23:12,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d6f8f457/e0a9073418f44f3e8ace5c64a0a0708e/FLAG62decf5b7 [2020-09-21 12:23:12,452 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d6f8f457/e0a9073418f44f3e8ace5c64a0a0708e [2020-09-21 12:23:12,466 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:23:12,473 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:23:12,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:23:12,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:23:12,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:23:12,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:23:12" (1/1) ... [2020-09-21 12:23:12,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d4521a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:12, skipping insertion in model container [2020-09-21 12:23:12,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:23:12" (1/1) ... [2020-09-21 12:23:12,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:23:12,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:23:12,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:23:12,743 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:23:12,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:23:12,776 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:23:12,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:12 WrapperNode [2020-09-21 12:23:12,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:23:12,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:23:12,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:23:12,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:23:12,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:12" (1/1) ... [2020-09-21 12:23:12,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:12" (1/1) ... [2020-09-21 12:23:12,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:12" (1/1) ... [2020-09-21 12:23:12,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:12" (1/1) ... [2020-09-21 12:23:12,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:12" (1/1) ... [2020-09-21 12:23:12,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:12" (1/1) ... [2020-09-21 12:23:12,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:12" (1/1) ... [2020-09-21 12:23:12,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:23:12,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:23:12,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:23:12,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:23:12,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:12" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:23:12,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:23:12,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:23:12,961 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-21 12:23:12,961 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-21 12:23:12,962 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:23:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:23:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:23:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-21 12:23:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-21 12:23:12,962 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:23:12,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:23:12,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:23:13,187 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:23:13,187 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 12:23:13,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:23:13 BoogieIcfgContainer [2020-09-21 12:23:13,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:23:13,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:23:13,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:23:13,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:23:13,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:23:12" (1/3) ... [2020-09-21 12:23:13,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de653ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:23:13, skipping insertion in model container [2020-09-21 12:23:13,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:12" (2/3) ... [2020-09-21 12:23:13,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de653ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:23:13, skipping insertion in model container [2020-09-21 12:23:13,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:23:13" (3/3) ... [2020-09-21 12:23:13,203 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2020-09-21 12:23:13,216 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:23:13,227 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:23:13,254 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:23:13,296 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:23:13,297 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:23:13,298 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:23:13,298 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:23:13,298 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:23:13,298 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:23:13,299 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:23:13,299 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:23:13,330 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-09-21 12:23:13,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 12:23:13,339 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:13,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:13,341 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:13,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:13,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-09-21 12:23:13,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:13,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672791921] [2020-09-21 12:23:13,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:13,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:13,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:13,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:23:13,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:13,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-21 12:23:13,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:13,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:13,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:13,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:13,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:23:13,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:13,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:13,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:13,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:13,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:13,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:13,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:13,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:13,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:13,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:13,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:13,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:13,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:13,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:13,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:13,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:13,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 12:23:13,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:13,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:13,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:13,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:23:13,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672791921] [2020-09-21 12:23:13,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:23:13,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:23:13,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967553054] [2020-09-21 12:23:13,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:23:13,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:13,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:23:13,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:23:13,746 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-09-21 12:23:13,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:13,886 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-09-21 12:23:13,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:23:13,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-21 12:23:13,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:13,901 INFO L225 Difference]: With dead ends: 44 [2020-09-21 12:23:13,901 INFO L226 Difference]: Without dead ends: 30 [2020-09-21 12:23:13,906 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 [2020-09-21 12:23:13,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-21 12:23:13,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-21 12:23:13,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-21 12:23:13,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-09-21 12:23:13,967 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-09-21 12:23:13,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:13,968 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-09-21 12:23:13,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:23:13,968 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-09-21 12:23:13,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-21 12:23:13,970 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:13,970 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:13,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:23:13,971 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:13,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:13,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-09-21 12:23:13,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:13,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391124022] [2020-09-21 12:23:13,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:13,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:14,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:14,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 12:23:14,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:14,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-21 12:23:14,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:14,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:14,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:14,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:14,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:14,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:14,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:14,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:14,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:14,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:14,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:14,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:14,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:14,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:14,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:14,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:14,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:14,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:14,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:14,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:14,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:14,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-21 12:23:14,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:14,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:14,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:14,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:23:14,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391124022] [2020-09-21 12:23:14,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:23:14,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:23:14,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778523270] [2020-09-21 12:23:14,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:23:14,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:14,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:23:14,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:23:14,197 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-09-21 12:23:14,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:14,268 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-09-21 12:23:14,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:23:14,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-21 12:23:14,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:14,271 INFO L225 Difference]: With dead ends: 36 [2020-09-21 12:23:14,271 INFO L226 Difference]: Without dead ends: 32 [2020-09-21 12:23:14,272 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 [2020-09-21 12:23:14,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-21 12:23:14,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-09-21 12:23:14,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-21 12:23:14,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-09-21 12:23:14,282 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-09-21 12:23:14,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:14,283 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-09-21 12:23:14,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:23:14,283 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-09-21 12:23:14,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-21 12:23:14,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:14,285 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:14,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:23:14,285 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:14,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:14,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-09-21 12:23:14,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:14,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160902195] [2020-09-21 12:23:14,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:14,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:14,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:14,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:14,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:14,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-21 12:23:14,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:14,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 658 [2020-09-21 12:23:14,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:14,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:14,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 12:23:14,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:14,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:23:14,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:14,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:14,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:14,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:14,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:14,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:14,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:14,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:14,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:14,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:14,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:14,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:14,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:15,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 12:23:15,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:15,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-21 12:23:15,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:15,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:15,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:23:15,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:15,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:15,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:15,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:15,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:15,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:15,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:15,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:15,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:15,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:15,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:15,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:15,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:23:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:15,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:15,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:15,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:15,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:23:15,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:15,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:15,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:15,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:15,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:23:15,111 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160902195] [2020-09-21 12:23:15,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:15,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 12:23:15,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839546475] [2020-09-21 12:23:15,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:23:15,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:15,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:23:15,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:23:15,114 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 6 states. [2020-09-21 12:23:15,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:15,198 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2020-09-21 12:23:15,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:23:15,198 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-09-21 12:23:15,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:15,200 INFO L225 Difference]: With dead ends: 58 [2020-09-21 12:23:15,200 INFO L226 Difference]: Without dead ends: 34 [2020-09-21 12:23:15,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:23:15,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-21 12:23:15,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-09-21 12:23:15,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-21 12:23:15,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-09-21 12:23:15,212 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2020-09-21 12:23:15,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:15,212 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-09-21 12:23:15,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:23:15,212 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-09-21 12:23:15,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-21 12:23:15,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:15,214 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:15,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:23:15,215 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:15,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:15,216 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-09-21 12:23:15,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:15,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759272170] [2020-09-21 12:23:15,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:15,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:15,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 12:23:15,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:23:15,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-09-21 12:23:15,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:15,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:15,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:15,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:23:15,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:15,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:15,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:15,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:15,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:15,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:15,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:15,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:15,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:15,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:15,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:15,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:15,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:23:15,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-21 12:23:15,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:15,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:15,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:15,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:15,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:15,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:15,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:15,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:15,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:15,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:23:15,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:15,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:15,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:15,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:15,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:23:15,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:15,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:15,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:15,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:15,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:23:15,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:15,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:15,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:15,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:15,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:15,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:23:15,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759272170] [2020-09-21 12:23:15,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:23:15,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:23:15,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205263561] [2020-09-21 12:23:15,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:23:15,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:15,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:23:15,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:23:15,905 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 7 states. [2020-09-21 12:23:16,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:16,020 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2020-09-21 12:23:16,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:23:16,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-21 12:23:16,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:16,023 INFO L225 Difference]: With dead ends: 39 [2020-09-21 12:23:16,023 INFO L226 Difference]: Without dead ends: 35 [2020-09-21 12:23:16,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:23:16,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-21 12:23:16,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2020-09-21 12:23:16,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-21 12:23:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2020-09-21 12:23:16,034 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 27 [2020-09-21 12:23:16,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:16,034 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-09-21 12:23:16,034 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:23:16,035 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2020-09-21 12:23:16,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-21 12:23:16,036 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:16,036 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:16,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:23:16,037 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:16,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:16,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1725129826, now seen corresponding path program 1 times [2020-09-21 12:23:16,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:16,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1382946899] [2020-09-21 12:23:16,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:16,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:16,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 12:23:16,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:16,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-09-21 12:23:16,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:16,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:23:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:23:16,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:23:16,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:16,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:16,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:16,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:16,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:16,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:16,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:16,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:16,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:16,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-21 12:23:16,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:23:16,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-21 12:23:16,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:16,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:16,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:16,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:23:16,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:16,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:16,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:16,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:16,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:16,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:23:16,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:16,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:16,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:16,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:16,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:16,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:16,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:16,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:16,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:16,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:23:16,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:16,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:16,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:16,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:16,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:16,768 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 12:23:16,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1382946899] [2020-09-21 12:23:16,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:23:16,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:23:16,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733630829] [2020-09-21 12:23:16,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:23:16,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:16,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:23:16,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:23:16,772 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 5 states. [2020-09-21 12:23:16,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:16,850 INFO L93 Difference]: Finished difference Result 70 states and 98 transitions. [2020-09-21 12:23:16,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:23:16,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-09-21 12:23:16,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:16,853 INFO L225 Difference]: With dead ends: 70 [2020-09-21 12:23:16,854 INFO L226 Difference]: Without dead ends: 43 [2020-09-21 12:23:16,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:23:16,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-21 12:23:16,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2020-09-21 12:23:16,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-21 12:23:16,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2020-09-21 12:23:16,877 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 28 [2020-09-21 12:23:16,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:16,881 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2020-09-21 12:23:16,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:23:16,881 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2020-09-21 12:23:16,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-21 12:23:16,885 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:16,885 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:16,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:23:16,885 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:16,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:16,888 INFO L82 PathProgramCache]: Analyzing trace with hash 482300055, now seen corresponding path program 1 times [2020-09-21 12:23:16,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:16,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632053667] [2020-09-21 12:23:16,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:16,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:17,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:17,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:17,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-21 12:23:17,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:17,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1010 [2020-09-21 12:23:17,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:17,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:17,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-21 12:23:17,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:17,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:17,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:17,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:17,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:17,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:17,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:17,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:17,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:17,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:17,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:17,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:17,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:18,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 12:23:18,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:23:18,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 435 [2020-09-21 12:23:18,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:18,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:18,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:23:18,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:18,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:18,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:18,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:18,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:18,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:18,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:18,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:18,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:18,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:18,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:18,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:18,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 12:23:18,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:18,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 12:23:18,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:18,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:18,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:23:18,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:18,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:18,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:18,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:18,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:18,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:18,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:23:18,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:18,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:18,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:18,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:18,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:18,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:23:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:18,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:18,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:18,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:18,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:23:18,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:18,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:18,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:18,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:18,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 12:23:18,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632053667] [2020-09-21 12:23:18,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:18,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 12:23:18,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690905032] [2020-09-21 12:23:18,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:23:18,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:18,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:23:18,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:23:18,539 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 6 states. [2020-09-21 12:23:18,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:18,637 INFO L93 Difference]: Finished difference Result 70 states and 98 transitions. [2020-09-21 12:23:18,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:23:18,638 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-09-21 12:23:18,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:18,639 INFO L225 Difference]: With dead ends: 70 [2020-09-21 12:23:18,639 INFO L226 Difference]: Without dead ends: 39 [2020-09-21 12:23:18,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:23:18,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-21 12:23:18,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-09-21 12:23:18,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 12:23:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2020-09-21 12:23:18,662 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 40 [2020-09-21 12:23:18,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:18,662 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2020-09-21 12:23:18,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:23:18,665 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2020-09-21 12:23:18,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-21 12:23:18,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:18,667 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:18,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:23:18,670 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:18,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:18,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1870215323, now seen corresponding path program 1 times [2020-09-21 12:23:18,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:18,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143692110] [2020-09-21 12:23:18,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:18,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:19,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 12:23:19,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:19,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:23:19,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:19,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:19,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:19,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:23:19,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:19,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:19,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:19,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:19,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:19,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:19,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:19,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:19,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:19,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:19,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:19,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:19,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:20,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:20,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:20,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:23:20,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:20,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:20,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:23:20,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:20,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:20,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:20,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:20,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:20,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:23:20,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:20,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:20,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:20,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:20,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:20,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:20,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:20,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-21 12:23:20,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:20,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:20,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:20,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:20,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:20,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:20,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:20,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:20,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:20,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:20,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:20,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:20,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:20,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:20,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:20,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:20,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:20,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:20,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:20,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:23:20,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:20,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:20,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-21 12:23:20,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143692110] [2020-09-21 12:23:20,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:20,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:23:20,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711410568] [2020-09-21 12:23:20,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:23:20,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:20,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:23:20,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:23:20,984 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand 8 states. [2020-09-21 12:23:21,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:21,123 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2020-09-21 12:23:21,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:23:21,124 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-09-21 12:23:21,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:21,125 INFO L225 Difference]: With dead ends: 78 [2020-09-21 12:23:21,125 INFO L226 Difference]: Without dead ends: 44 [2020-09-21 12:23:21,126 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:23:21,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-21 12:23:21,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2020-09-21 12:23:21,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-21 12:23:21,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2020-09-21 12:23:21,134 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 41 [2020-09-21 12:23:21,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:21,134 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2020-09-21 12:23:21,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:23:21,134 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2020-09-21 12:23:21,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-21 12:23:21,136 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:21,136 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:21,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:23:21,136 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:21,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:21,137 INFO L82 PathProgramCache]: Analyzing trace with hash 208191613, now seen corresponding path program 2 times [2020-09-21 12:23:21,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:21,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336904119] [2020-09-21 12:23:21,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:21,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:21,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:21,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:22,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:22,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 12:23:22,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:22,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:22,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:22,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 12:23:22,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:22,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:22,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:22,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:22,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:22,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:22,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:22,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:22,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:22,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:22,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:22,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:22,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:22,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:22,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:22,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:23,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:23,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:23,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:23,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:23,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:23,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:23,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:23:23,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:23,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:23,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:23,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:23,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:23,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 12:23:23,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:23,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:23,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:23,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:23,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:23,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:23,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:23,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:23,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:23,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:23:23,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:23,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:23,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:23,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:23,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:23,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:23,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:23,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:23,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:23,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:23,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:23,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:23,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:23,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:23,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:23,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:23,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:23,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:23:23,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:23,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:23,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:23,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:23,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:23,317 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-21 12:23:23,318 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336904119] [2020-09-21 12:23:23,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:23,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:23:23,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551945594] [2020-09-21 12:23:23,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:23:23,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:23,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:23:23,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:23:23,320 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 7 states. [2020-09-21 12:23:23,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:23,461 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2020-09-21 12:23:23,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:23:23,464 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-09-21 12:23:23,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:23,465 INFO L225 Difference]: With dead ends: 48 [2020-09-21 12:23:23,465 INFO L226 Difference]: Without dead ends: 44 [2020-09-21 12:23:23,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:23:23,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-21 12:23:23,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2020-09-21 12:23:23,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-21 12:23:23,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2020-09-21 12:23:23,473 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 41 [2020-09-21 12:23:23,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:23,474 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2020-09-21 12:23:23,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:23:23,474 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2020-09-21 12:23:23,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-21 12:23:23,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:23,475 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:23,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:23:23,476 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:23,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:23,476 INFO L82 PathProgramCache]: Analyzing trace with hash 794281190, now seen corresponding path program 1 times [2020-09-21 12:23:23,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:23,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381451123] [2020-09-21 12:23:23,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:23,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:24,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-21 12:23:24,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:23:24,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:24,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:24,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:24,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:24,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 12:23:24,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:24,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:24,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:24,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:24,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:24,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:24,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:24,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:24,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:24,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:24,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:24,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:24,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:25,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-21 12:23:25,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:23:25,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-09-21 12:23:25,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:25,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:25,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:23:25,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:25,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:25,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:25,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:25,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:25,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-09-21 12:23:25,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:25,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:25,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:25,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:23:25,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:25,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:25,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:25,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:25,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:25,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:23:25,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:25,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:25,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:25,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:25,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:25,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:25,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:25,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:25,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:25,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:25,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:25,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:25,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:25,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:25,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:25,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-21 12:23:25,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:25,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:25,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:26,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:26,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:26,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:26,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:23:26,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:26,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:26,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:26,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:26,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:26,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:26,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:26,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:23:26,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:26,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:26,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:26,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:26,050 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-21 12:23:26,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381451123] [2020-09-21 12:23:26,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:26,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 12:23:26,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933453432] [2020-09-21 12:23:26,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:23:26,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:26,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:23:26,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:23:26,060 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 10 states. [2020-09-21 12:23:26,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:26,311 INFO L93 Difference]: Finished difference Result 88 states and 127 transitions. [2020-09-21 12:23:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:23:26,312 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-09-21 12:23:26,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:26,313 INFO L225 Difference]: With dead ends: 88 [2020-09-21 12:23:26,313 INFO L226 Difference]: Without dead ends: 53 [2020-09-21 12:23:26,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:23:26,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-21 12:23:26,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-21 12:23:26,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-21 12:23:26,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2020-09-21 12:23:26,332 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 54 [2020-09-21 12:23:26,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:26,333 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2020-09-21 12:23:26,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:23:26,333 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2020-09-21 12:23:26,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-21 12:23:26,335 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:26,336 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:26,336 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:23:26,336 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:26,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:26,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1252569501, now seen corresponding path program 1 times [2020-09-21 12:23:26,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:26,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628525102] [2020-09-21 12:23:26,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:26,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:27,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 12:23:27,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:27,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-09-21 12:23:27,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:27,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:27,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-21 12:23:27,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:23:27,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:27,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:27,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:27,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:27,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:27,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:27,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:27,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:27,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:27,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:27,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:27,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:27,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:28,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:28,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-21 12:23:28,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:23:28,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:23:28,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:28,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:28,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:23:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:23:28,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:28,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:28,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:28,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:28,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:28,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:29,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 12:23:29,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:29,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 685 [2020-09-21 12:23:29,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:29,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:29,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:29,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:23:29,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:29,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:29,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:29,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:29,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:29,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-21 12:23:29,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:29,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:23:29,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:29,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:29,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:29,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:29,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:29,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:29,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:29,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:29,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:29,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:29,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:29,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:29,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:29,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:29,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:29,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:29,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:29,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:29,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:29,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:29,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:29,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:29,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:29,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:29,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:29,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:29,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:29,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:29,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:29,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 12:23:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:29,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:30,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-21 12:23:30,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:23:30,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:30,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:30,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:30,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-21 12:23:30,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:30,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:30,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:30,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:30,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:30,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:30,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:23:30,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:30,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:30,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:30,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:30,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:30,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:30,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:30,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:30,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:30,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:30,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:30,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:30,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:30,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:30,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:30,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:30,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:30,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:30,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:30,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:30,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:30,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:30,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:30,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:30,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:30,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:30,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:30,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:30,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:30,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:30,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:30,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:30,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:30,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:30,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:30,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:30,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:30,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:30,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:30,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:30,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:30,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:30,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:30,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:30,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:30,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:30,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:30,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:30,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:30,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:30,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:30,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:30,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:30,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 24 proven. 47 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2020-09-21 12:23:30,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628525102] [2020-09-21 12:23:30,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:30,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:23:30,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454112547] [2020-09-21 12:23:30,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:23:30,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:30,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:23:30,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:23:30,512 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand 8 states. [2020-09-21 12:23:30,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:30,627 INFO L93 Difference]: Finished difference Result 103 states and 148 transitions. [2020-09-21 12:23:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:23:30,628 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-09-21 12:23:30,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:30,629 INFO L225 Difference]: With dead ends: 103 [2020-09-21 12:23:30,630 INFO L226 Difference]: Without dead ends: 56 [2020-09-21 12:23:30,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:23:30,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-21 12:23:30,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2020-09-21 12:23:30,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-21 12:23:30,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2020-09-21 12:23:30,648 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 94 [2020-09-21 12:23:30,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:30,652 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2020-09-21 12:23:30,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:23:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2020-09-21 12:23:30,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-21 12:23:30,654 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:30,654 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:30,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 12:23:30,654 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:30,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:30,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1156896337, now seen corresponding path program 2 times [2020-09-21 12:23:30,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:30,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261290913] [2020-09-21 12:23:30,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:30,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:31,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 12:23:31,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:31,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:23:31,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:31,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:31,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:31,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 12:23:31,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:31,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:31,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:31,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:31,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:31,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:31,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:31,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:31,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:31,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:31,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:31,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:32,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:32,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:23:32,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:32,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:23:32,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:32,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:32,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:32,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:32,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:33,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:33,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:33,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:33,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:23:33,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:23:33,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:33,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:33,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:33,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:33,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:33,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:33,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:23:33,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:33,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:33,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:33,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:33,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:33,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:33,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:33,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:33,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:33,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:33,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:33,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:33,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:33,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:33,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:33,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:33,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:33,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:33,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:33,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:33,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:33,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:33,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:33,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:33,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:33,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:33,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:33,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:33,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:33,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:33,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:33,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:33,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:23:33,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:33,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:33,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:33,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:33,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:33,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:33,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:33,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:33,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:33,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:33,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:23:33,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:33,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:33,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:33,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:33,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:33,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:33,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:33,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:33,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:33,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:33,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:33,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:33,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:33,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:33,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:33,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:33,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:33,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:33,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:23:33,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:33,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:33,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:33,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:33,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:33,925 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 19 proven. 26 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-09-21 12:23:33,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261290913] [2020-09-21 12:23:33,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:33,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 12:23:33,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884095023] [2020-09-21 12:23:33,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:23:33,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:33,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:23:33,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:23:33,932 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand 9 states. [2020-09-21 12:23:34,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:34,105 INFO L93 Difference]: Finished difference Result 74 states and 112 transitions. [2020-09-21 12:23:34,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:23:34,106 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-09-21 12:23:34,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:34,109 INFO L225 Difference]: With dead ends: 74 [2020-09-21 12:23:34,110 INFO L226 Difference]: Without dead ends: 70 [2020-09-21 12:23:34,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:23:34,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-21 12:23:34,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 64. [2020-09-21 12:23:34,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-21 12:23:34,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 94 transitions. [2020-09-21 12:23:34,137 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 94 transitions. Word has length 68 [2020-09-21 12:23:34,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:34,138 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 94 transitions. [2020-09-21 12:23:34,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:23:34,140 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 94 transitions. [2020-09-21 12:23:34,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-09-21 12:23:34,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:34,142 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:34,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 12:23:34,143 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:34,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1656795625, now seen corresponding path program 1 times [2020-09-21 12:23:34,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:34,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [523594979] [2020-09-21 12:23:34,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:34,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:34,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:34,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:34,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:34,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:35,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:35,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-21 12:23:35,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:23:35,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:23:35,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:35,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:35,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:35,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-21 12:23:35,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:35,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:35,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:35,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:35,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:35,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:35,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:35,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:35,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:35,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:35,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:35,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:35,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:35,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:35,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:35,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:35,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:35,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:35,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:35,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:35,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:36,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 12:23:36,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-21 12:23:36,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:23:36,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:36,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:36,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:23:36,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:23:36,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:36,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:36,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-21 12:23:37,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:23:37,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:37,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:23:37,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:37,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:37,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:37,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-21 12:23:37,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:37,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:23:37,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:37,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:37,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:23:37,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:37,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:37,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:37,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:37,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:37,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:37,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:37,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:37,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:37,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-21 12:23:37,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:37,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:37,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:37,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:37,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:37,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:37,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:37,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:37,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:37,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:37,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:23:37,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:37,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:37,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:37,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 12:23:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:37,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:37,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:23:37,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:23:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:37,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:37,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:37,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:37,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:37,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:37,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:37,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:37,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:37,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:37,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:37,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:37,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:37,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:37,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:37,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:37,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:37,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:37,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:37,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:37,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:37,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 31 proven. 62 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2020-09-21 12:23:37,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [523594979] [2020-09-21 12:23:37,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:37,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 12:23:37,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203613570] [2020-09-21 12:23:37,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:23:37,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:37,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:23:37,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:23:37,868 INFO L87 Difference]: Start difference. First operand 64 states and 94 transitions. Second operand 9 states. [2020-09-21 12:23:38,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:38,053 INFO L93 Difference]: Finished difference Result 135 states and 241 transitions. [2020-09-21 12:23:38,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:23:38,054 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-09-21 12:23:38,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:38,056 INFO L225 Difference]: With dead ends: 135 [2020-09-21 12:23:38,056 INFO L226 Difference]: Without dead ends: 77 [2020-09-21 12:23:38,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-09-21 12:23:38,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-21 12:23:38,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 72. [2020-09-21 12:23:38,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-21 12:23:38,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 108 transitions. [2020-09-21 12:23:38,081 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 108 transitions. Word has length 95 [2020-09-21 12:23:38,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:38,082 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 108 transitions. [2020-09-21 12:23:38,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:23:38,082 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 108 transitions. [2020-09-21 12:23:38,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-09-21 12:23:38,084 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:38,084 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:38,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 12:23:38,084 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:38,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:38,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1683140199, now seen corresponding path program 3 times [2020-09-21 12:23:38,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:38,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [739855605] [2020-09-21 12:23:38,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:38,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:39,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-21 12:23:39,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-21 12:23:39,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-09-21 12:23:39,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:39,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:39,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-21 12:23:39,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-21 12:23:39,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:39,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:39,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:39,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:39,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:39,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:39,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:39,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:39,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:39,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:40,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-21 12:23:40,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:40,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:40,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:23:40,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-21 12:23:40,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:40,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:40,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:41,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:41,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 12:23:41,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:41,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:23:41,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:41,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:41,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-21 12:23:41,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:41,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:41,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:41,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:41,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:42,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:42,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:42,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:42,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:42,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:23:42,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:42,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:42,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:42,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:42,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:42,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:23:42,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:42,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:42,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:42,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:42,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:42,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:42,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:42,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:42,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:42,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:42,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:42,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:42,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:42,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:42,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:42,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:42,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:42,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:42,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:42,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:42,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:42,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:42,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:42,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:42,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:42,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:42,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:42,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:42,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:23:42,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:42,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:42,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:42,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:42,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:42,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:42,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:23:43,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-21 12:23:43,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:23:43,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:43,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:23:43,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:43,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:43,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 12:23:43,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:23:43,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:43,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:43,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:43,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:43,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:43,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:43,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:43,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:43,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:43,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:43,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:43,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:43,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:43,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:43,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:43,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:43,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:43,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:43,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:43,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:43,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:43,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:43,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-21 12:23:43,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:43,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:23:43,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:43,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:43,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:43,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:43,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:43,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:43,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:43,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:43,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:43,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:43,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:43,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:43,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-21 12:23:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:43,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:43,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:23:43,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:43,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:23:43,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:43,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:43,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:43,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:43,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:43,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:43,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:43,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:43,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:43,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:43,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:43,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:43,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:43,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:43,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:43,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:43,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:43,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:43,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:43,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:43,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:43,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:43,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:43,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:43,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:43,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,701 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 107 proven. 117 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2020-09-21 12:23:43,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [739855605] [2020-09-21 12:23:43,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:43,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 12:23:43,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063717388] [2020-09-21 12:23:43,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:23:43,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:43,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:23:43,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:23:43,703 INFO L87 Difference]: Start difference. First operand 72 states and 108 transitions. Second operand 10 states. [2020-09-21 12:23:44,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:44,036 INFO L93 Difference]: Finished difference Result 167 states and 315 transitions. [2020-09-21 12:23:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:23:44,037 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-09-21 12:23:44,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:44,040 INFO L225 Difference]: With dead ends: 167 [2020-09-21 12:23:44,040 INFO L226 Difference]: Without dead ends: 99 [2020-09-21 12:23:44,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2020-09-21 12:23:44,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-09-21 12:23:44,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2020-09-21 12:23:44,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-21 12:23:44,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 134 transitions. [2020-09-21 12:23:44,052 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 134 transitions. Word has length 150 [2020-09-21 12:23:44,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:44,053 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 134 transitions. [2020-09-21 12:23:44,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:23:44,053 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 134 transitions. [2020-09-21 12:23:44,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-09-21 12:23:44,055 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:44,055 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:44,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 12:23:44,055 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:44,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:44,056 INFO L82 PathProgramCache]: Analyzing trace with hash -46122593, now seen corresponding path program 4 times [2020-09-21 12:23:44,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:44,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079209794] [2020-09-21 12:23:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:44,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:44,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:44,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:44,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:44,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:45,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-21 12:23:45,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:23:45,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:45,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:45,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:45,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:45,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:23:45,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:45,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:45,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:45,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:45,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:45,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:45,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:45,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:45,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:45,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:45,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:45,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:45,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:46,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 12:23:46,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:23:46,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:23:46,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:46,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:46,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:46,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-21 12:23:46,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:46,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:46,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:23:47,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:47,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:47,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:47,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:23:47,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:47,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-21 12:23:47,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:47,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:23:47,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:47,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:47,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:47,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:47,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:47,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:47,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:47,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:47,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:47,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:47,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:47,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:47,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:47,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:47,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-21 12:23:47,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:47,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:23:47,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:47,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:47,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:47,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:47,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:47,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:23:47,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:47,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:47,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:23:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:47,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:47,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-21 12:23:47,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:47,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:47,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:47,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:47,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:23:47,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:47,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:47,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:23:47,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:47,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:47,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 82 proven. 20 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-09-21 12:23:47,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079209794] [2020-09-21 12:23:47,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:47,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-21 12:23:47,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468375420] [2020-09-21 12:23:47,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 12:23:47,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:47,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 12:23:47,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:23:47,789 INFO L87 Difference]: Start difference. First operand 87 states and 134 transitions. Second operand 11 states. [2020-09-21 12:23:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:48,081 INFO L93 Difference]: Finished difference Result 180 states and 308 transitions. [2020-09-21 12:23:48,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 12:23:48,082 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 95 [2020-09-21 12:23:48,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:48,090 INFO L225 Difference]: With dead ends: 180 [2020-09-21 12:23:48,090 INFO L226 Difference]: Without dead ends: 102 [2020-09-21 12:23:48,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:23:48,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-09-21 12:23:48,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 93. [2020-09-21 12:23:48,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-21 12:23:48,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 140 transitions. [2020-09-21 12:23:48,118 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 140 transitions. Word has length 95 [2020-09-21 12:23:48,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:48,119 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 140 transitions. [2020-09-21 12:23:48,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 12:23:48,119 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 140 transitions. [2020-09-21 12:23:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-21 12:23:48,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:48,121 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:48,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-21 12:23:48,122 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:48,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:48,122 INFO L82 PathProgramCache]: Analyzing trace with hash 653199104, now seen corresponding path program 5 times [2020-09-21 12:23:48,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:48,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796271180] [2020-09-21 12:23:48,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:48,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:49,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 12:23:49,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-21 12:23:49,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:23:49,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-21 12:23:49,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 12:23:49,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:49,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:49,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:49,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:49,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:49,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:49,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:49,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:49,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:49,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:49,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:49,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:49,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:50,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-21 12:23:50,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-21 12:23:50,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:23:50,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-21 12:23:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-21 12:23:50,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:50,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:50,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:51,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 12:23:51,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:51,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:23:51,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:51,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:51,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-21 12:23:51,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-21 12:23:51,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:51,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:51,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:51,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:51,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:51,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:23:51,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:51,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:51,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:51,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:51,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:51,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:51,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:51,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:51,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:51,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:51,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:51,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:51,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:51,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:51,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:51,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:51,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:51,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:51,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:51,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:51,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:51,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:51,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:51,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:51,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:51,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:51,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:51,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:51,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:51,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:51,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:51,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:51,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:51,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:51,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:51,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:51,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:51,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:51,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:51,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:51,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:52,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-21 12:23:52,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:23:52,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:52,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:52,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:52,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:52,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-21 12:23:52,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:52,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:52,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:53,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:53,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:23:53,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:53,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:23:53,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:53,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:23:53,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:53,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:53,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:53,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:53,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:53,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:53,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:53,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:53,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:53,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:53,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:23:53,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:53,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:53,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:53,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:53,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:53,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:53,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:53,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-21 12:23:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:53,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:23:53,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:53,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 12:23:53,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:53,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:53,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:53,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:53,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:53,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:53,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:53,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:53,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:53,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:53,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:53,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:53,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:53,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:53,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:53,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:53,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,492 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 88 proven. 45 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2020-09-21 12:23:53,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796271180] [2020-09-21 12:23:53,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:53,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:23:53,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296926668] [2020-09-21 12:23:53,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:23:53,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:53,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:23:53,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:23:53,494 INFO L87 Difference]: Start difference. First operand 93 states and 140 transitions. Second operand 8 states. [2020-09-21 12:23:53,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:53,637 INFO L93 Difference]: Finished difference Result 174 states and 290 transitions. [2020-09-21 12:23:53,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:23:53,638 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2020-09-21 12:23:53,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:53,639 INFO L225 Difference]: With dead ends: 174 [2020-09-21 12:23:53,639 INFO L226 Difference]: Without dead ends: 86 [2020-09-21 12:23:53,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:23:53,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-21 12:23:53,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-09-21 12:23:53,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-09-21 12:23:53,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 125 transitions. [2020-09-21 12:23:53,660 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 125 transitions. Word has length 136 [2020-09-21 12:23:53,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:53,660 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 125 transitions. [2020-09-21 12:23:53,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:23:53,661 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 125 transitions. [2020-09-21 12:23:53,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-21 12:23:53,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:53,665 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:53,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-21 12:23:53,666 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:53,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:53,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1302571822, now seen corresponding path program 6 times [2020-09-21 12:23:53,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:53,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50978611] [2020-09-21 12:23:53,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:54,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-21 12:23:54,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-21 12:23:54,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:23:54,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:54,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:54,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 12:23:54,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:54,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:54,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:54,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:54,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:54,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:54,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:54,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:54,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:54,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:54,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:54,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:54,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:55,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-21 12:23:55,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:55,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:23:55,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:55,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:23:55,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-09-21 12:23:55,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-21 12:23:55,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:55,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:55,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:55,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:23:55,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:55,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 12:23:55,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:55,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:55,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:55,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:55,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:55,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:55,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:55,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:55,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:55,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:23:55,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:55,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:55,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:55,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:55,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:55,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:55,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:55,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:55,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:23:55,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:55,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:55,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:55,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:55,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:55,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:55,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:55,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:55,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:55,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:55,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:55,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:55,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:55,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:55,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:55,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:55,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:55,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:55,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:55,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:55,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:55,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:55,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:55,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:55,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:55,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:55,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:55,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:55,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:55,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:55,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:23:55,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:55,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:55,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:55,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:55,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:55,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:55,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:55,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:55,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:55,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:55,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:55,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:55,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:55,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:55,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:55,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:55,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:55,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:55,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:55,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:55,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:55,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:55,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:55,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:55,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:23:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:55,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:56,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:56,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:56,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:56,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:56,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:56,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:56,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 12:23:56,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:56,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:23:56,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:56,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:56,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:56,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-21 12:23:56,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:56,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:57,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:57,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:23:57,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:23:57,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:57,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:23:58,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:58,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:58,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 12:23:58,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:23:58,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:58,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:58,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:58,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:58,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:58,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:58,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:58,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:58,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:58,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:58,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:58,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:58,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:58,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:58,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:58,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:58,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:58,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:58,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:58,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:58,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:58,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-21 12:23:58,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:23:58,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:58,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:58,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:58,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:58,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:58,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:58,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:23:58,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:58,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:23:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:58,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:58,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-21 12:23:58,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:58,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:58,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:58,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:58,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:58,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 12:23:58,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:58,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:58,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:58,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:58,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:23:58,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:58,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 225 proven. 23 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2020-09-21 12:23:58,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50978611] [2020-09-21 12:23:58,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:58,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 12:23:58,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143084773] [2020-09-21 12:23:58,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 12:23:58,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:58,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 12:23:58,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:23:58,712 INFO L87 Difference]: Start difference. First operand 86 states and 125 transitions. Second operand 12 states. [2020-09-21 12:23:59,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:59,053 INFO L93 Difference]: Finished difference Result 185 states and 315 transitions. [2020-09-21 12:23:59,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:23:59,053 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 163 [2020-09-21 12:23:59,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:59,055 INFO L225 Difference]: With dead ends: 185 [2020-09-21 12:23:59,055 INFO L226 Difference]: Without dead ends: 100 [2020-09-21 12:23:59,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-09-21 12:23:59,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-21 12:23:59,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 91. [2020-09-21 12:23:59,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-21 12:23:59,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2020-09-21 12:23:59,076 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 163 [2020-09-21 12:23:59,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:59,076 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2020-09-21 12:23:59,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 12:23:59,077 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2020-09-21 12:23:59,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-09-21 12:23:59,078 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:59,078 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:59,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-21 12:23:59,079 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:59,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:59,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1540036056, now seen corresponding path program 7 times [2020-09-21 12:23:59,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:59,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365658635] [2020-09-21 12:23:59,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:00,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:00,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-09-21 12:24:00,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:24:00,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:24:00,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:24:00,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:24:00,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-21 12:24:00,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:00,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:24:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:00,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:00,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:00,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:24:00,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:00,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:24:00,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:00,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:00,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:00,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:24:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:00,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:00,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:00,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:00,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:00,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:00,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:01,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:01,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-21 12:24:01,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:24:01,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:24:01,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:24:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:24:01,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-21 12:24:01,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:01,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:01,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:01,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:01,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:01,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:01,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:24:02,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:24:02,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:24:02,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-21 12:24:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:24:02,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:24:02,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 12:24:02,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:24:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:24:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:24:02,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:24:02,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:02,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:02,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:24:02,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:24:02,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:02,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:02,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:24:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:24:02,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:24:02,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:02,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:24:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:24:02,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:24:02,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:02,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:02,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:24:02,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:24:02,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:24:02,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-21 12:24:02,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:24:02,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:24:02,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:24:02,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:24:02,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:24:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:24:02,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:24:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:24:02,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:24:02,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:24:02,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:24:02,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:24:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:24:02,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 12:24:02,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:24:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:24:02,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:24:02,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:24:02,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:02,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:02,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:24:02,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:24:02,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:02,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:02,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:24:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:24:02,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:24:02,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:02,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:02,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:24:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:24:02,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:24:02,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:02,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:02,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,552 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 48 proven. 63 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2020-09-21 12:24:02,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365658635] [2020-09-21 12:24:02,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:24:02,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 12:24:02,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124030406] [2020-09-21 12:24:02,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:24:02,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:24:02,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:24:02,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:24:02,554 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand 10 states. [2020-09-21 12:24:02,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:24:02,851 INFO L93 Difference]: Finished difference Result 222 states and 378 transitions. [2020-09-21 12:24:02,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 12:24:02,854 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 109 [2020-09-21 12:24:02,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:24:02,858 INFO L225 Difference]: With dead ends: 222 [2020-09-21 12:24:02,859 INFO L226 Difference]: Without dead ends: 125 [2020-09-21 12:24:02,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:24:02,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-21 12:24:02,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 116. [2020-09-21 12:24:02,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-21 12:24:02,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 175 transitions. [2020-09-21 12:24:02,877 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 175 transitions. Word has length 109 [2020-09-21 12:24:02,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:24:02,877 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 175 transitions. [2020-09-21 12:24:02,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:24:02,877 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 175 transitions. [2020-09-21 12:24:02,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-09-21 12:24:02,881 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:24:02,881 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 17, 17, 16, 15, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 7, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:24:02,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-21 12:24:02,882 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:24:02,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:24:02,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1314784763, now seen corresponding path program 8 times [2020-09-21 12:24:02,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:24:02,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100484420] [2020-09-21 12:24:02,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:24:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:03,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-09-21 12:24:03,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-21 12:24:03,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1040 [2020-09-21 12:24:03,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:03,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:24:03,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-21 12:24:03,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 12:24:03,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:03,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:24:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:03,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:03,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:24:03,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:03,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:24:03,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:03,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:03,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:03,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:03,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:03,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:24:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:04,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:04,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:04,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:04,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:04,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:04,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:05,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:05,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-09-21 12:24:05,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:24:05,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:24:05,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:24:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 12:24:05,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 12:24:05,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:05,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:05,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:05,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:05,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:05,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:05,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:05,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:06,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:06,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:06,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-21 12:24:06,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:24:06,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:24:06,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:06,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:24:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:24:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 12:24:06,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:06,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:06,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:06,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:06,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:06,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:06,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:06,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:06,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking...