/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --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_7-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:11:00,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:11:00,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:11:01,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:11:01,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:11:01,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:11:01,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:11:01,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:11:01,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:11:01,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:11:01,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:11:01,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:11:01,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:11:01,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:11:01,032 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:11:01,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:11:01,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:11:01,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:11:01,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:11:01,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:11:01,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:11:01,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:11:01,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:11:01,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:11:01,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:11:01,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:11:01,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:11:01,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:11:01,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:11:01,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:11:01,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:11:01,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:11:01,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:11:01,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:11:01,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:11:01,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:11:01,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:11:01,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:11:01,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:11:01,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:11:01,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:11:01,058 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 03:11:01,095 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:11:01,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:11:01,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:11:01,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:11:01,097 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:11:01,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:11:01,097 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:11:01,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:11:01,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:11:01,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:11:01,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:11:01,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:11:01,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:11:01,100 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:11:01,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:11:01,102 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:11:01,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:11:01,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:11:01,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:11:01,102 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:11:01,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:11:01,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:11:01,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:11:01,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:11:01,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:11:01,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:11:01,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:11:01,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:11:01,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:11:01,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 03:11:01,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:11:01,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:11:01,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:11:01,598 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:11:01,598 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:11:01,599 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_7-1.c [2020-09-25 03:11:01,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16580e808/af8019930b484c33b5fdd39984ecde6b/FLAG49a1bff7e [2020-09-25 03:11:02,204 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:11:02,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_7-1.c [2020-09-25 03:11:02,214 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16580e808/af8019930b484c33b5fdd39984ecde6b/FLAG49a1bff7e [2020-09-25 03:11:02,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16580e808/af8019930b484c33b5fdd39984ecde6b [2020-09-25 03:11:02,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:11:02,561 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:11:02,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:11:02,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:11:02,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:11:02,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:02" (1/1) ... [2020-09-25 03:11:02,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdd711c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:02, skipping insertion in model container [2020-09-25 03:11:02,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:11:02" (1/1) ... [2020-09-25 03:11:02,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:11:02,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:11:02,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:11:02,808 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:11:02,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:11:02,845 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:11:02,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:02 WrapperNode [2020-09-25 03:11:02,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:11:02,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:11:02,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:11:02,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:11:02,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:02" (1/1) ... [2020-09-25 03:11:02,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:02" (1/1) ... [2020-09-25 03:11:02,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:02" (1/1) ... [2020-09-25 03:11:02,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:02" (1/1) ... [2020-09-25 03:11:02,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:02" (1/1) ... [2020-09-25 03:11:02,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:02" (1/1) ... [2020-09-25 03:11:02,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:02" (1/1) ... [2020-09-25 03:11:02,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:11:02,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:11:02,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:11:02,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:11:02,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:11:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:11:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:11:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 03:11:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:11:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:11:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:11:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 03:11:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:11:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:11:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:11:03,259 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:11:03,259 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 03:11:03,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:03 BoogieIcfgContainer [2020-09-25 03:11:03,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:11:03,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:11:03,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:11:03,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:11:03,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:11:02" (1/3) ... [2020-09-25 03:11:03,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12be0199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:03, skipping insertion in model container [2020-09-25 03:11:03,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:11:02" (2/3) ... [2020-09-25 03:11:03,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12be0199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:11:03, skipping insertion in model container [2020-09-25 03:11:03,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:11:03" (3/3) ... [2020-09-25 03:11:03,274 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_7-1.c [2020-09-25 03:11:03,286 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:11:03,297 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:11:03,332 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:11:03,371 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:11:03,372 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:11:03,386 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:11:03,386 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:11:03,389 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:11:03,389 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:11:03,389 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:11:03,389 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:11:03,425 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 03:11:03,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 03:11:03,433 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:03,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:03,435 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:03,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:03,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 03:11:03,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:03,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370036467] [2020-09-25 03:11:03,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:03,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:03,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:03,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 03:11:03,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:03,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 03:11:03,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:11:03,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:11:03,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:03,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:03,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:03,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:03,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:03,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:11:03,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:03,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:03,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:11:03,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:03,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:03,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:03,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:03,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:03,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 03:11:03,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:03,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:03,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:03,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:11:03,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:11:03,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370036467] [2020-09-25 03:11:03,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:11:03,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:11:03,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686911280] [2020-09-25 03:11:03,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:11:03,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:03,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:11:03,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:11:03,819 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 03:11:03,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:03,942 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 03:11:03,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:11:03,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 03:11:03,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:03,958 INFO L225 Difference]: With dead ends: 44 [2020-09-25 03:11:03,959 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 03:11:03,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:11:03,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 03:11:04,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 03:11:04,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 03:11:04,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 03:11:04,018 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 03:11:04,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:04,018 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 03:11:04,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:11:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 03:11:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 03:11:04,021 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:04,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:04,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:11:04,022 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:04,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:04,023 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 03:11:04,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:04,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592658770] [2020-09-25 03:11:04,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:04,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:04,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 03:11:04,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:04,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 03:11:04,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:04,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:04,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:04,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:11:04,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:04,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:04,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:04,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:04,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:04,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:04,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:04,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:04,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:04,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:04,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:04,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:04,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:04,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:04,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:04,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 03:11:04,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:04,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:11:04,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:04,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:04,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:04,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:11:04,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592658770] [2020-09-25 03:11:04,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:11:04,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 03:11:04,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422226228] [2020-09-25 03:11:04,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 03:11:04,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:04,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 03:11:04,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:11:04,242 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 03:11:04,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:04,307 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 03:11:04,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 03:11:04,308 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 03:11:04,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:04,309 INFO L225 Difference]: With dead ends: 36 [2020-09-25 03:11:04,310 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 03:11:04,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 03:11:04,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 03:11:04,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 03:11:04,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 03:11:04,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 03:11:04,320 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 03:11:04,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:04,320 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 03:11:04,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 03:11:04,320 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 03:11:04,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 03:11:04,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:04,322 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:04,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:11:04,323 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:04,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:04,323 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 03:11:04,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:04,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721163853] [2020-09-25 03:11:04,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:04,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:04,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 03:11:04,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:11:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 627 [2020-09-25 03:11:04,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:04,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:04,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:04,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 03:11:04,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:04,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:04,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:04,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:04,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:04,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:04,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:11:04,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:04,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:04,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:05,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:05,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:11:05,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:11:05,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-09-25 03:11:05,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:05,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:05,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:05,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 03:11:05,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:05,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:05,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:05,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:05,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:05,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:11:05,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:05,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:05,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:11:05,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:05,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:11:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:05,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:05,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:05,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:05,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:11:05,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:05,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:05,376 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:11:05,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721163853] [2020-09-25 03:11:05,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:05,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:11:05,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498998470] [2020-09-25 03:11:05,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:11:05,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:05,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:11:05,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:11:05,379 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-25 03:11:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:05,471 INFO L93 Difference]: Finished difference Result 62 states and 79 transitions. [2020-09-25 03:11:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:11:05,472 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 03:11:05,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:05,474 INFO L225 Difference]: With dead ends: 62 [2020-09-25 03:11:05,474 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 03:11:05,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:11:05,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 03:11:05,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2020-09-25 03:11:05,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 03:11:05,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-09-25 03:11:05,486 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 33 [2020-09-25 03:11:05,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:05,486 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-09-25 03:11:05,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:11:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-09-25 03:11:05,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 03:11:05,489 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:05,489 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:05,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:11:05,489 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:05,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:05,490 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 03:11:05,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:05,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067637380] [2020-09-25 03:11:05,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:05,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:05,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:06,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:06,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 03:11:06,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:11:06,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-09-25 03:11:06,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:06,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:06,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:06,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 03:11:06,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:06,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:06,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:06,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:06,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:06,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:06,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:06,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:06,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:06,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:06,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:06,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:06,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:06,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:06,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:06,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 03:11:06,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:11:06,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507 [2020-09-25 03:11:06,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:06,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:06,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:06,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:11:06,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:06,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:06,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:06,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:06,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:06,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 03:11:06,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:06,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:06,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:06,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:11:06,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:06,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:11:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:06,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:06,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:06,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:06,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:06,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:11:06,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:06,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:06,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 03:11:06,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067637380] [2020-09-25 03:11:06,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:06,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 03:11:06,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959166191] [2020-09-25 03:11:06,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 03:11:06,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:06,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 03:11:06,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 03:11:06,677 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 7 states. [2020-09-25 03:11:06,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:06,800 INFO L93 Difference]: Finished difference Result 94 states and 129 transitions. [2020-09-25 03:11:06,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:11:06,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 03:11:06,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:06,805 INFO L225 Difference]: With dead ends: 94 [2020-09-25 03:11:06,805 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 03:11:06,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:11:06,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 03:11:06,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2020-09-25 03:11:06,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 03:11:06,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2020-09-25 03:11:06,821 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 35 [2020-09-25 03:11:06,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:06,822 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2020-09-25 03:11:06,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 03:11:06,822 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2020-09-25 03:11:06,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 03:11:06,824 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:06,825 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] [2020-09-25 03:11:06,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 03:11:06,825 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:06,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:06,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-25 03:11:06,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:06,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714921933] [2020-09-25 03:11:06,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:06,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:06,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:06,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:06,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:07,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:11,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:11,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 03:11:11,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:11:11,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 03:11:11,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:11,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:11,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:11:11,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 03:11:11,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:11,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:11,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:11,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:11,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:11,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:11,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:11,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:11,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:11,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:11,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:11,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:11,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:11,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:11,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:11,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:11,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:12,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:15,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:15,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:11:15,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 03:11:15,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3519 [2020-09-25 03:11:15,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:15,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:11:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:15,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 03:11:15,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:15,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:15,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:15,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:15,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:15,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:15,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 03:11:15,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:11:15,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-25 03:11:15,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:15,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:11:15,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:15,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:15,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:15,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:15,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:15,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:15,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:11:15,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:15,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:15,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:15,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:15,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 03:11:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:15,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:15,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:15,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:15,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:11:15,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:15,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:11:15,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:15,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 03:11:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:15,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:15,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:15,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:15,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:15,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:11:15,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:15,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:15,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:15,674 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 30 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-25 03:11:15,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714921933] [2020-09-25 03:11:15,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:15,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 03:11:15,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583504467] [2020-09-25 03:11:15,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:11:15,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:15,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:11:15,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:11:15,677 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand 9 states. [2020-09-25 03:11:15,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:15,815 INFO L93 Difference]: Finished difference Result 88 states and 119 transitions. [2020-09-25 03:11:15,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 03:11:15,816 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-25 03:11:15,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:15,819 INFO L225 Difference]: With dead ends: 88 [2020-09-25 03:11:15,819 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 03:11:15,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-25 03:11:15,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 03:11:15,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2020-09-25 03:11:15,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-09-25 03:11:15,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 105 transitions. [2020-09-25 03:11:15,836 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 105 transitions. Word has length 51 [2020-09-25 03:11:15,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:15,836 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 105 transitions. [2020-09-25 03:11:15,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:11:15,837 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 105 transitions. [2020-09-25 03:11:15,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 03:11:15,842 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:15,842 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:15,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 03:11:15,842 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:15,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:15,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1161869885, now seen corresponding path program 2 times [2020-09-25 03:11:15,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:15,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664709928] [2020-09-25 03:11:15,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:15,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:15,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:15,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:15,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:15,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:16,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:16,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:16,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:16,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:16,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:16,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:17,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:18,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:20,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:20,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 03:11:20,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 03:11:20,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 03:11:20,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:20,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:20,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 03:11:20,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:11:20,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:20,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:20,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:20,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:20,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:20,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:20,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:20,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:20,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:20,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:20,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:20,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:20,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:20,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:20,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:20,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:21,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:22,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:25,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 03:11:25,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 03:11:25,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 03:11:25,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 03:11:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:11:25,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 03:11:25,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:25,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:25,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:25,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:26,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:26,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:26,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 03:11:26,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:26,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:11:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:26,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:11:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:26,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:26,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:26,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:26,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:26,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 03:11:26,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:11:26,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:26,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:11:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:26,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:26,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:26,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:26,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:11:26,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:26,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:26,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:26,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:11:26,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:26,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:11:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:26,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:26,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:28,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 03:11:28,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:11:28,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2196 [2020-09-25 03:11:28,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:28,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:11:28,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:28,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:11:28,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:28,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:28,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:28,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:28,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:28,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:11:28,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:28,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:28,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:28,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:28,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:28,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:11:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:28,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:28,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:28,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 03:11:28,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-25 03:11:28,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:11:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:11:28,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:11:28,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:28,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:28,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:28,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:11:28,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 03:11:28,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:28,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:28,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:28,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:11:28,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:28,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:11:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:28,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:28,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:28,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:28,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:11:28,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:28,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:11:28,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:28,912 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 82 proven. 75 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-09-25 03:11:28,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664709928] [2020-09-25 03:11:28,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:28,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 03:11:28,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007584399] [2020-09-25 03:11:28,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 03:11:28,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:28,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 03:11:28,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-09-25 03:11:28,916 INFO L87 Difference]: Start difference. First operand 76 states and 105 transitions. Second operand 11 states. [2020-09-25 03:11:29,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:29,214 INFO L93 Difference]: Finished difference Result 143 states and 232 transitions. [2020-09-25 03:11:29,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:11:29,215 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 87 [2020-09-25 03:11:29,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:29,217 INFO L225 Difference]: With dead ends: 143 [2020-09-25 03:11:29,217 INFO L226 Difference]: Without dead ends: 64 [2020-09-25 03:11:29,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:11:29,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-25 03:11:29,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2020-09-25 03:11:29,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 03:11:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 71 transitions. [2020-09-25 03:11:29,229 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 71 transitions. Word has length 87 [2020-09-25 03:11:29,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:29,230 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 71 transitions. [2020-09-25 03:11:29,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 03:11:29,230 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 71 transitions. [2020-09-25 03:11:29,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-25 03:11:29,235 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:29,235 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:29,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 03:11:29,235 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:29,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:29,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1108116753, now seen corresponding path program 3 times [2020-09-25 03:11:29,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:29,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115100730] [2020-09-25 03:11:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:29,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:29,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:30,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:31,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:33,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-09-25 03:11:34,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 03:11:34,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 03:11:34,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:11:34,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 03:11:34,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 03:11:34,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:34,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:34,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:34,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:34,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:34,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:34,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:34,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:34,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:34,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:34,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:34,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:34,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:39,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-09-25 03:11:39,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 03:11:39,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 03:11:39,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:39,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 03:11:39,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 03:11:39,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 03:11:39,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:39,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:39,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:39,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:40,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:40,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:42,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:11:42,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 03:11:42,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3073 [2020-09-25 03:11:42,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:42,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:11:42,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:42,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:42,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:42,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:42,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:42,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 03:11:42,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:42,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:42,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 03:11:42,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:42,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:42,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:42,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:42,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:42,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:11:42,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:42,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:42,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:42,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:42,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:42,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:11:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:42,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:42,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:42,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:42,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:11:42,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:42,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:42,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:42,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:11:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:42,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:42,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:42,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:42,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:11:42,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:42,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:42,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:42,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:11:42,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:42,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 03:11:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:42,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:42,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:43,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:43,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:44,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:47,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:47,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 03:11:47,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 03:11:47,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 03:11:47,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 03:11:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 03:11:47,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 03:11:47,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:47,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:47,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:47,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:47,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:47,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:48,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 03:11:48,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:11:48,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1116 [2020-09-25 03:11:48,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:48,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 03:11:48,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:48,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 03:11:48,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:48,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:48,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:48,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:49,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 03:11:49,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:11:49,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-25 03:11:49,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:49,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:49,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:49,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 03:11:49,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:49,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:11:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:49,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:49,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:49,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:49,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:11:49,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:49,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:49,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 03:11:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:49,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:49,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:49,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:49,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:11:49,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:49,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:49,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:49,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:11:49,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:49,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 03:11:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:49,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:49,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:11:49,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:49,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:11:49,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:49,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:11:49,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:49,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:49,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:49,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 03:11:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:49,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:49,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:11:49,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:49,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 03:11:49,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:49,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:11:49,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:49,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:11:49,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:49,143 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 188 proven. 100 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2020-09-25 03:11:49,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115100730] [2020-09-25 03:11:49,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:11:49,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 03:11:49,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228055419] [2020-09-25 03:11:49,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 03:11:49,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:11:49,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 03:11:49,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-09-25 03:11:49,147 INFO L87 Difference]: Start difference. First operand 58 states and 71 transitions. Second operand 14 states. [2020-09-25 03:11:49,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:11:49,320 INFO L93 Difference]: Finished difference Result 110 states and 142 transitions. [2020-09-25 03:11:49,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 03:11:49,321 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 121 [2020-09-25 03:11:49,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:11:49,322 INFO L225 Difference]: With dead ends: 110 [2020-09-25 03:11:49,322 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 03:11:49,323 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2020-09-25 03:11:49,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 03:11:49,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 03:11:49,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 03:11:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2020-09-25 03:11:49,331 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 121 [2020-09-25 03:11:49,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:11:49,332 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2020-09-25 03:11:49,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 03:11:49,332 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2020-09-25 03:11:49,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 03:11:49,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:11:49,334 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:11:49,334 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 03:11:49,335 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:11:49,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:11:49,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 4 times [2020-09-25 03:11:49,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:11:49,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [223078206] [2020-09-25 03:11:49,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:11:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:49,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:49,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:50,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:51,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:51,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:54,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:54,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 03:11:54,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 03:11:54,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 03:11:54,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:54,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:11:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 03:11:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 03:11:54,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:54,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:11:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:54,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:54,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:11:54,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:11:54,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:11:54,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 03:11:54,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:11:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:11:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:11:54,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:11:54,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:11:54,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 03:11:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:11:54,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:54,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:54,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:54,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:54,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:11:54,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking...