/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_25-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:45:00,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:45:00,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:45:01,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:45:01,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:45:01,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:45:01,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:45:01,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:45:01,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:45:01,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:45:01,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:45:01,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:45:01,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:45:01,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:45:01,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:45:01,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:45:01,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:45:01,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:45:01,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:45:01,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:45:01,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:45:01,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:45:01,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:45:01,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:45:01,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:45:01,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:45:01,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:45:01,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:45:01,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:45:01,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:45:01,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:45:01,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:45:01,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:45:01,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:45:01,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:45:01,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:45:01,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:45:01,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:45:01,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:45:01,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:45:01,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:45:01,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:45:01,119 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:45:01,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:45:01,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:45:01,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:45:01,122 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:45:01,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:45:01,122 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:45:01,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:45:01,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:45:01,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:45:01,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:45:01,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:45:01,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:45:01,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:45:01,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:45:01,125 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:45:01,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:45:01,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:45:01,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:45:01,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:45:01,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:45:01,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:45:01,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:45:01,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:45:01,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:45:01,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:45:01,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:45:01,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:45:01,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:45:01,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:45:01,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:45:01,636 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:45:01,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:45:01,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:45:01,643 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:45:01,644 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_25-1.c [2020-09-25 07:45:01,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db57b2b2c/823f85e3faf445fdbaca227606e55fae/FLAG0ae867d8a [2020-09-25 07:45:02,255 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:45:02,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_25-1.c [2020-09-25 07:45:02,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db57b2b2c/823f85e3faf445fdbaca227606e55fae/FLAG0ae867d8a [2020-09-25 07:45:02,593 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db57b2b2c/823f85e3faf445fdbaca227606e55fae [2020-09-25 07:45:02,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:45:02,614 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:45:02,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:02,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:45:02,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:45:02,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:02" (1/1) ... [2020-09-25 07:45:02,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d763833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:02, skipping insertion in model container [2020-09-25 07:45:02,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:45:02" (1/1) ... [2020-09-25 07:45:02,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:45:02,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:45:02,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:02,907 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:45:02,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:45:02,953 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:45:02,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:02 WrapperNode [2020-09-25 07:45:02,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:45:02,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:45:02,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:45:02,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:45:02,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:02" (1/1) ... [2020-09-25 07:45:02,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:02" (1/1) ... [2020-09-25 07:45:03,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:02" (1/1) ... [2020-09-25 07:45:03,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:02" (1/1) ... [2020-09-25 07:45:03,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:02" (1/1) ... [2020-09-25 07:45:03,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:02" (1/1) ... [2020-09-25 07:45:03,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:02" (1/1) ... [2020-09-25 07:45:03,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:45:03,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:45:03,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:45:03,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:45:03,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:02" (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 07:45:03,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:45:03,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:45:03,215 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 07:45:03,215 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 07:45:03,215 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:45:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:45:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:45:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 07:45:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 07:45:03,216 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:45:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:45:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:45:03,453 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:45:03,453 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:45:03,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:03 BoogieIcfgContainer [2020-09-25 07:45:03,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:45:03,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:45:03,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:45:03,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:45:03,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:45:02" (1/3) ... [2020-09-25 07:45:03,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f82928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:03, skipping insertion in model container [2020-09-25 07:45:03,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:45:02" (2/3) ... [2020-09-25 07:45:03,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8f82928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:45:03, skipping insertion in model container [2020-09-25 07:45:03,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:45:03" (3/3) ... [2020-09-25 07:45:03,470 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_25-1.c [2020-09-25 07:45:03,485 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:45:03,504 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:45:03,538 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:45:03,581 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:45:03,581 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:45:03,582 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:45:03,582 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:45:03,582 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:45:03,582 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:45:03,582 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:45:03,583 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:45:03,612 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 07:45:03,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 07:45:03,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:03,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:03,624 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:03,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:03,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 07:45:03,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:03,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455573961] [2020-09-25 07:45:03,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:03,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:03,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:04,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 07:45:04,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:04,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-25 07:45:04,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:04,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 07:45:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:04,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:45:04,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:04,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:04,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:04,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:04,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:04,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:04,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:04,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:04,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:04,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:04,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:04,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:04,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:04,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:04,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:04,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:45:04,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:04,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:04,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:04,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:04,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:45:04,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455573961] [2020-09-25 07:45:04,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:04,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:04,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166101724] [2020-09-25 07:45:04,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:04,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:04,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:04,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:04,176 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 07:45:04,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:04,325 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 07:45:04,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:45:04,328 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 07:45:04,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:04,342 INFO L225 Difference]: With dead ends: 58 [2020-09-25 07:45:04,343 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 07:45:04,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:45:04,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 07:45:04,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 07:45:04,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:45:04,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:45:04,412 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 07:45:04,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:04,413 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:45:04,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:04,414 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:45:04,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 07:45:04,416 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:04,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:04,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:45:04,417 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:04,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:04,418 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 07:45:04,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:04,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902854608] [2020-09-25 07:45:04,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:04,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:04,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 07:45:04,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:04,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-25 07:45:04,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:04,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:04,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:45:04,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:04,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:04,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:04,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:04,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:04,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:04,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:04,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:04,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:04,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:04,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 07:45:04,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:04,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:04,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:04,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:04,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 07:45:04,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:04,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:04,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:04,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:04,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:04,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:04,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:45:04,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902854608] [2020-09-25 07:45:04,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:04,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:45:04,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36398407] [2020-09-25 07:45:04,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:45:04,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:04,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:45:04,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:45:04,765 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 07:45:04,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:04,858 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 07:45:04,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:45:04,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 07:45:04,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:04,861 INFO L225 Difference]: With dead ends: 50 [2020-09-25 07:45:04,861 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 07:45:04,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:45:04,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 07:45:04,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 07:45:04,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 07:45:04,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 07:45:04,885 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 07:45:04,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:04,886 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 07:45:04,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:45:04,886 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 07:45:04,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 07:45:04,891 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:04,891 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:04,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:45:04,892 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:04,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:04,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 07:45:04,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:04,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889788714] [2020-09-25 07:45:04,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:04,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:04,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:05,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:06,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:06,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 07:45:06,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:06,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1993 [2020-09-25 07:45:06,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:06,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 07:45:06,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:45:06,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:06,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:06,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:06,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:06,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:06,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:06,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:45:06,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:06,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:06,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:06,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:06,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:06,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:45:06,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:06,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:07,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:07,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:07,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-09-25 07:45:07,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:07,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:07,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:45:07,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:07,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:07,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:07,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:07,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:07,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:45:07,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:07,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:07,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:07,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:07,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:07,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:07,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:07,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:07,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 07:45:07,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:07,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:07,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:07,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:07,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:07,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:07,575 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 07:45:07,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889788714] [2020-09-25 07:45:07,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:45:07,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:45:07,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213577612] [2020-09-25 07:45:07,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:45:07,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:07,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:45:07,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:45:07,583 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 8 states. [2020-09-25 07:45:07,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:07,726 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2020-09-25 07:45:07,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:45:07,727 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2020-09-25 07:45:07,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:07,729 INFO L225 Difference]: With dead ends: 64 [2020-09-25 07:45:07,730 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 07:45:07,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:45:07,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 07:45:07,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 07:45:07,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 07:45:07,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 07:45:07,742 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 07:45:07,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:07,742 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 07:45:07,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:45:07,743 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 07:45:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 07:45:07,745 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:07,745 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:07,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:45:07,745 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:07,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:07,746 INFO L82 PathProgramCache]: Analyzing trace with hash -159162515, now seen corresponding path program 1 times [2020-09-25 07:45:07,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:07,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126416705] [2020-09-25 07:45:07,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:07,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:07,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:08,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:11,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 07:45:11,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:45:11,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3691 [2020-09-25 07:45:11,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:11,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:11,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:11,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 07:45:11,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:45:11,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:11,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:11,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:11,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:11,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:11,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:11,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:11,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:11,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:11,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:11,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:11,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:11,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:11,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:11,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:12,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:12,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:45:12,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 974 [2020-09-25 07:45:12,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:12,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:12,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:12,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:12,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:45:12,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:12,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:12,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:12,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:12,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:12,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:45:12,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:12,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:45:12,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:12,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:12,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:12,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:12,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:12,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 07:45:12,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:12,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:12,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:12,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:12,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:45:12,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126416705] [2020-09-25 07:45:12,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:12,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:12,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925985450] [2020-09-25 07:45:12,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:12,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:12,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:12,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:12,592 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 9 states. [2020-09-25 07:45:12,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:12,763 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2020-09-25 07:45:12,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:45:12,764 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-09-25 07:45:12,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:12,766 INFO L225 Difference]: With dead ends: 68 [2020-09-25 07:45:12,766 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 07:45:12,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:45:12,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 07:45:12,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2020-09-25 07:45:12,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-09-25 07:45:12,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2020-09-25 07:45:12,778 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 34 [2020-09-25 07:45:12,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:12,779 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2020-09-25 07:45:12,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2020-09-25 07:45:12,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 07:45:12,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:12,782 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:12,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:45:12,782 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:12,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:12,783 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 2 times [2020-09-25 07:45:12,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:12,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735683315] [2020-09-25 07:45:12,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:12,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:12,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:13,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 07:45:13,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:13,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-09-25 07:45:13,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:13,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:45:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 07:45:13,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:13,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:13,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:13,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:13,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:13,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:13,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:13,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:13,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:13,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:13,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:13,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:13,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:13,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:13,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:13,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:13,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 07:45:13,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:13,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:13,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:13,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:13,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:45:13,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:13,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:13,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:13,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:13,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:13,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:13,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:45:13,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:13,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:13,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:13,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:13,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:13,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:13,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:13,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:14,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:14,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:14,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:45:14,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:14,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:14,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:14,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 07:45:14,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735683315] [2020-09-25 07:45:14,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:14,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:14,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865028834] [2020-09-25 07:45:14,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:14,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:14,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:14,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:14,027 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand 9 states. [2020-09-25 07:45:14,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:14,148 INFO L93 Difference]: Finished difference Result 72 states and 89 transitions. [2020-09-25 07:45:14,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:45:14,148 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2020-09-25 07:45:14,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:14,150 INFO L225 Difference]: With dead ends: 72 [2020-09-25 07:45:14,150 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 07:45:14,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:45:14,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 07:45:14,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 07:45:14,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 07:45:14,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2020-09-25 07:45:14,162 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 34 [2020-09-25 07:45:14,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:14,163 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 69 transitions. [2020-09-25 07:45:14,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2020-09-25 07:45:14,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 07:45:14,165 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:14,165 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:14,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:45:14,166 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:14,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:14,166 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 07:45:14,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:14,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404173078] [2020-09-25 07:45:14,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:14,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:14,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:15,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:15,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:45:15,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:45:15,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1658 [2020-09-25 07:45:15,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:15,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:15,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:15,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 07:45:15,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:45:15,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:15,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:15,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:15,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:15,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:15,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:15,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:15,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:15,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:15,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:15,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:15,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:15,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:15,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:15,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:15,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:16,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 07:45:16,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:16,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-09-25 07:45:16,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:16,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:16,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:16,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:16,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:16,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:16,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:16,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:45:16,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:16,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:45:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:16,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:16,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:16,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:16,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:16,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:16,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:45:16,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:16,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:45:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:16,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:16,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:45:16,479 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:45:16,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404173078] [2020-09-25 07:45:16,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:16,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:16,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285030586] [2020-09-25 07:45:16,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:16,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:16,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:16,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:16,484 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. Second operand 9 states. [2020-09-25 07:45:16,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:16,611 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2020-09-25 07:45:16,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 07:45:16,612 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2020-09-25 07:45:16,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:16,614 INFO L225 Difference]: With dead ends: 76 [2020-09-25 07:45:16,614 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 07:45:16,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:45:16,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 07:45:16,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 50. [2020-09-25 07:45:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 07:45:16,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 07:45:16,633 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 35 [2020-09-25 07:45:16,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:16,633 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 07:45:16,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:16,634 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 07:45:16,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-25 07:45:16,640 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:16,640 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:16,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:45:16,640 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:16,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:16,641 INFO L82 PathProgramCache]: Analyzing trace with hash -2066677686, now seen corresponding path program 1 times [2020-09-25 07:45:16,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:16,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61176044] [2020-09-25 07:45:16,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:16,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:16,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:17,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:19,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-09-25 07:45:21,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:45:21,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 07:45:21,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:21,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:21,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 07:45:21,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:21,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:21,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:21,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:21,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:45:21,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:21,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:21,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:21,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:21,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:21,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:45:21,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:21,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:21,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:22,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:23,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:24,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:45:24,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:45:24,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2520 [2020-09-25 07:45:24,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:24,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 07:45:24,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:24,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:24,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:24,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:24,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:24,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:24,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:24,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:24,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:24,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:24,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:24,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:24,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:24,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:24,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:24,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:24,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 07:45:24,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:24,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:24,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:24,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:24,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:24,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:24,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:24,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:24,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:24,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:24,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:45:24,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:24,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:24,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:24,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:24,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:24,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:24,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:24,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:24,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:24,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:24,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:45:24,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:24,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:24,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:24,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:24,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:24,563 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 07:45:24,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61176044] [2020-09-25 07:45:24,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:24,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:45:24,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064876641] [2020-09-25 07:45:24,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:45:24,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:24,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:45:24,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:45:24,567 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 9 states. [2020-09-25 07:45:24,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:24,821 INFO L93 Difference]: Finished difference Result 74 states and 95 transitions. [2020-09-25 07:45:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:45:24,822 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-09-25 07:45:24,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:24,824 INFO L225 Difference]: With dead ends: 74 [2020-09-25 07:45:24,824 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 07:45:24,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:45:24,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 07:45:24,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2020-09-25 07:45:24,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 07:45:24,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2020-09-25 07:45:24,844 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 50 [2020-09-25 07:45:24,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:24,845 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2020-09-25 07:45:24,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:45:24,845 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2020-09-25 07:45:24,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 07:45:24,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:24,848 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:24,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:45:24,848 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:24,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:24,849 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 07:45:24,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:24,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503971969] [2020-09-25 07:45:24,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:24,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:24,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:25,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:26,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:27,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:28,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:29,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 07:45:29,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 07:45:29,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 07:45:29,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:29,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:29,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:29,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:45:29,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 07:45:29,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:29,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:29,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:29,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:29,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:29,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:29,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:29,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:29,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:29,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:29,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:29,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:29,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:29,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:29,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:30,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:31,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:33,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:34,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:34,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 07:45:34,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 07:45:34,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 07:45:34,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:34,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:45:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 07:45:34,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:34,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:34,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:34,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:35,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:35,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:35,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 07:45:35,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:35,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:35,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 07:45:35,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:35,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:35,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:35,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:35,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:35,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 07:45:35,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:35,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:35,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:35,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:35,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:35,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:35,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:35,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:45:35,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:35,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:35,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:35,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:35,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:35,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:35,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 07:45:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:35,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:35,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:35,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:35,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-25 07:45:35,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:35,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:45:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:35,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:35,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:35,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:35,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:35,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:35,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:35,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 07:45:35,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:35,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:35,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:35,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:35,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:45:35,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:35,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:35,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:35,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:35,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:35,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:35,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:35,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:35,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:35,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:35,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:35,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:35,494 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 07:45:35,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503971969] [2020-09-25 07:45:35,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:35,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 07:45:35,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970409963] [2020-09-25 07:45:35,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 07:45:35,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:35,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 07:45:35,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:45:35,497 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand 11 states. [2020-09-25 07:45:35,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:35,796 INFO L93 Difference]: Finished difference Result 135 states and 193 transitions. [2020-09-25 07:45:35,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 07:45:35,796 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 69 [2020-09-25 07:45:35,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:35,799 INFO L225 Difference]: With dead ends: 135 [2020-09-25 07:45:35,799 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 07:45:35,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2020-09-25 07:45:35,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 07:45:35,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 74. [2020-09-25 07:45:35,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 07:45:35,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2020-09-25 07:45:35,822 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 69 [2020-09-25 07:45:35,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:35,825 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2020-09-25 07:45:35,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 07:45:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2020-09-25 07:45:35,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 07:45:35,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:35,828 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:35,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:45:35,828 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:35,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:35,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1523115787, now seen corresponding path program 1 times [2020-09-25 07:45:35,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:35,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823418622] [2020-09-25 07:45:35,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:35,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:35,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:37,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:38,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:39,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:40,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 07:45:40,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 07:45:40,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 07:45:40,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:40,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:40,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:40,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:40,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 07:45:40,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:40,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:40,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:40,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:40,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:40,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:40,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:40,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:40,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:40,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:40,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:40,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:40,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:40,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:40,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:41,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:42,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:42,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:42,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:45,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:45:45,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 07:45:45,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 07:45:45,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:45,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:45,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 07:45:45,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 07:45:45,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 07:45:45,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:45,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:45,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:45,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:46,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 07:45:46,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:45:46,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1009 [2020-09-25 07:45:46,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:46,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:46,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:45:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:46,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 07:45:46,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:46,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:46,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:46,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:46,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 07:45:46,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:45:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 07:45:46,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:46,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:45:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:46,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:47,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:47,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:47,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:47,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:47,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:45:47,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:47,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:47,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:47,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 07:45:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:47,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:47,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:47,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:47,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:47,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:47,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:47,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:47,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 07:45:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:47,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:47,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:47,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:47,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:47,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:47,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:47,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:47,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:47,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:47,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:47,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 07:45:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:47,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:47,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 07:45:47,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:45:47,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-25 07:45:47,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:47,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:47,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:45:47,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 07:45:47,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 07:45:47,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:47,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:45:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:47,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:47,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:45:47,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:47,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:45:47,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:47,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:47,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:47,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:47,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:45:47,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:47,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 07:45:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:47,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:47,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:45:47,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:47,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:45:47,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:47,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:47,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:45:47,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:47,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:45:47,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 21 proven. 33 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-09-25 07:45:47,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823418622] [2020-09-25 07:45:47,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:45:47,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 07:45:47,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429846963] [2020-09-25 07:45:47,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 07:45:47,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:45:47,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 07:45:47,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:45:47,390 INFO L87 Difference]: Start difference. First operand 74 states and 91 transitions. Second operand 13 states. [2020-09-25 07:45:47,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:45:47,847 INFO L93 Difference]: Finished difference Result 182 states and 257 transitions. [2020-09-25 07:45:47,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 07:45:47,851 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 85 [2020-09-25 07:45:47,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:45:47,854 INFO L225 Difference]: With dead ends: 182 [2020-09-25 07:45:47,854 INFO L226 Difference]: Without dead ends: 112 [2020-09-25 07:45:47,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2020-09-25 07:45:47,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-25 07:45:47,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 93. [2020-09-25 07:45:47,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 07:45:47,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 119 transitions. [2020-09-25 07:45:47,873 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 119 transitions. Word has length 85 [2020-09-25 07:45:47,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:45:47,874 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 119 transitions. [2020-09-25 07:45:47,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 07:45:47,874 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 119 transitions. [2020-09-25 07:45:47,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-25 07:45:47,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:45:47,875 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:45:47,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:45:47,876 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:45:47,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:45:47,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1645450882, now seen corresponding path program 1 times [2020-09-25 07:45:47,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:45:47,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177097593] [2020-09-25 07:45:47,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:45:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:47,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:47,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:48,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:52,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 07:45:52,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 07:45:52,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 07:45:52,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:52,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:52,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:45:52,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:45:52,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 07:45:52,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:45:52,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:45:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:52,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:45:52,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:45:52,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:45:52,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:45:52,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:45:52,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:45:52,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:45:52,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:45:52,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:45:52,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:45:52,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:45:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:45:52,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:52,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:53,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:53,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:53,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:53,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:45:53,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking...