/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_20-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:59:35,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:59:35,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:59:35,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:59:35,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:59:35,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:59:35,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:59:35,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:59:35,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:59:35,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:59:35,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:59:35,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:59:35,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:59:35,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:59:35,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:59:35,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:59:35,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:59:35,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:59:35,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:59:36,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:59:36,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:59:36,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:59:36,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:59:36,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:59:36,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:59:36,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:59:36,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:59:36,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:59:36,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:59:36,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:59:36,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:59:36,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:59:36,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:59:36,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:59:36,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:59:36,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:59:36,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:59:36,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:59:36,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:59:36,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:59:36,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:59:36,046 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 09:59:36,096 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:59:36,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:59:36,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:59:36,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:59:36,100 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:59:36,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:59:36,101 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:59:36,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:59:36,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:59:36,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:59:36,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:59:36,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:59:36,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:59:36,103 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:59:36,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:59:36,104 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:59:36,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:59:36,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:59:36,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:59:36,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:59:36,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:59:36,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:59:36,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:59:36,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:59:36,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:59:36,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:59:36,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:59:36,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:59:36,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:59:36,107 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:59:36,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:59:36,614 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:59:36,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:59:36,621 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:59:36,621 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:59:36,622 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_20-2.c [2020-09-25 09:59:36,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5661beeb/48c191e5fcdd410c81bab6d0369f4108/FLAG244d38ab0 [2020-09-25 09:59:37,274 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:59:37,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_20-2.c [2020-09-25 09:59:37,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5661beeb/48c191e5fcdd410c81bab6d0369f4108/FLAG244d38ab0 [2020-09-25 09:59:37,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5661beeb/48c191e5fcdd410c81bab6d0369f4108 [2020-09-25 09:59:37,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:59:37,642 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:59:37,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:59:37,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:59:37,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:59:37,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:59:37" (1/1) ... [2020-09-25 09:59:37,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3705ef2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:37, skipping insertion in model container [2020-09-25 09:59:37,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:59:37" (1/1) ... [2020-09-25 09:59:37,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:59:37,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:59:37,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:59:37,932 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:59:37,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:59:37,972 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:59:37,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:37 WrapperNode [2020-09-25 09:59:37,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:59:37,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:59:37,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:59:37,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:59:37,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:37" (1/1) ... [2020-09-25 09:59:37,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:37" (1/1) ... [2020-09-25 09:59:38,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:37" (1/1) ... [2020-09-25 09:59:38,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:37" (1/1) ... [2020-09-25 09:59:38,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:37" (1/1) ... [2020-09-25 09:59:38,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:37" (1/1) ... [2020-09-25 09:59:38,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:37" (1/1) ... [2020-09-25 09:59:38,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:59:38,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:59:38,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:59:38,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:59:38,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:37" (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 09:59:38,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:59:38,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:59:38,231 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 09:59:38,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:59:38,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:59:38,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:59:38,231 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 09:59:38,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:59:38,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:59:38,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:59:38,450 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:59:38,450 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 09:59:38,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:59:38 BoogieIcfgContainer [2020-09-25 09:59:38,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:59:38,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:59:38,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:59:38,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:59:38,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:59:37" (1/3) ... [2020-09-25 09:59:38,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713da6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:59:38, skipping insertion in model container [2020-09-25 09:59:38,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:59:37" (2/3) ... [2020-09-25 09:59:38,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713da6fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:59:38, skipping insertion in model container [2020-09-25 09:59:38,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:59:38" (3/3) ... [2020-09-25 09:59:38,499 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_20-2.c [2020-09-25 09:59:38,529 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:59:38,543 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:59:38,567 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:59:38,596 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:59:38,596 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:59:38,596 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:59:38,596 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:59:38,597 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:59:38,597 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:59:38,597 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:59:38,597 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:59:38,617 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 09:59:38,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 09:59:38,625 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:38,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:38,626 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:38,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:38,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 09:59:38,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:38,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965741757] [2020-09-25 09:59:38,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:38,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:38,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:38,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 09:59:38,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:38,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 09:59:38,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:38,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:38,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:38,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:38,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:59:38,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:59:38,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:38,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:38,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:38,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:38,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:38,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:38,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:38,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:38,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:38,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:38,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:38,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:38,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:38,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:38,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:38,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:38,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:38,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 09:59:38,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:38,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:38,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:38,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:38,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:38,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:38,978 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 09:59:38,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965741757] [2020-09-25 09:59:38,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:59:38,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:59:38,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75428997] [2020-09-25 09:59:38,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:59:38,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:39,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:59:39,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:59:39,017 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 09:59:39,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:39,151 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 09:59:39,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:59:39,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 09:59:39,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:39,165 INFO L225 Difference]: With dead ends: 44 [2020-09-25 09:59:39,166 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 09:59:39,170 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 09:59:39,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 09:59:39,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 09:59:39,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 09:59:39,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 09:59:39,222 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 09:59:39,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:39,222 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 09:59:39,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:59:39,223 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 09:59:39,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 09:59:39,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:39,226 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 09:59:39,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:59:39,226 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:39,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:39,227 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 09:59:39,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:39,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2058699420] [2020-09-25 09:59:39,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:39,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:39,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:39,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 09:59:39,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:39,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 09:59:39,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:39,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:39,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:39,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:39,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:39,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:39,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:39,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:39,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:39,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:39,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:39,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:39,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:39,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:39,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:39,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:39,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:39,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:39,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:39,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:39,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:39,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:39,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 09:59:39,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:39,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 09:59:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:39,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:39,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:59:39,473 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 09:59:39,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2058699420] [2020-09-25 09:59:39,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:59:39,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 09:59:39,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749142012] [2020-09-25 09:59:39,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 09:59:39,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:39,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 09:59:39,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 09:59:39,478 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 09:59:39,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:39,589 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 09:59:39,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 09:59:39,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 09:59:39,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:39,592 INFO L225 Difference]: With dead ends: 36 [2020-09-25 09:59:39,592 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 09:59:39,593 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 09:59:39,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 09:59:39,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 09:59:39,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 09:59:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 09:59:39,602 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 09:59:39,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:39,603 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 09:59:39,603 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 09:59:39,603 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 09:59:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 09:59:39,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:39,605 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:39,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:59:39,606 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:39,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:39,606 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 09:59:39,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:39,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310815830] [2020-09-25 09:59:39,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:39,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:39,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:39,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:40,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 09:59:40,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:40,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-25 09:59:40,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:40,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:40,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:40,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:40,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:59:40,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:59:40,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:40,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:40,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:40,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:40,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:40,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:40,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:40,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:40,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:40,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:59:40,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:59:40,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 09:59:40,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:40,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:40,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:40,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:40,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:59:40,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:40,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:40,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:40,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:40,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:59:40,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:40,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:40,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:40,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:40,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:40,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:40,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:40,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:40,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:40,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:59:40,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:40,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:40,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:40,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:59:40,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:40,499 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 09:59:40,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310815830] [2020-09-25 09:59:40,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:40,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:59:40,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334144993] [2020-09-25 09:59:40,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:59:40,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:40,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:59:40,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:59:40,503 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-25 09:59:40,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:40,606 INFO L93 Difference]: Finished difference Result 62 states and 79 transitions. [2020-09-25 09:59:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:59:40,606 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 09:59:40,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:40,608 INFO L225 Difference]: With dead ends: 62 [2020-09-25 09:59:40,609 INFO L226 Difference]: Without dead ends: 40 [2020-09-25 09:59:40,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:40,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-09-25 09:59:40,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2020-09-25 09:59:40,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 09:59:40,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-09-25 09:59:40,627 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 33 [2020-09-25 09:59:40,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:40,628 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-09-25 09:59:40,628 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:59:40,628 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-09-25 09:59:40,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 09:59:40,630 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:40,632 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:40,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:59:40,633 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:40,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:40,634 INFO L82 PathProgramCache]: Analyzing trace with hash -643371531, now seen corresponding path program 1 times [2020-09-25 09:59:40,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:40,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [131459915] [2020-09-25 09:59:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:40,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:40,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 09:59:41,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:41,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-09-25 09:59:41,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:41,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:41,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 09:59:41,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:41,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:41,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:41,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:41,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:41,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:41,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:41,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:41,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 09:59:41,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:41,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-09-25 09:59:41,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:41,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:41,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 09:59:41,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:41,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:41,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:41,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:59:41,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:41,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:41,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:41,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:41,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:59:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:41,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:41,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:41,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:59:41,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:41,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:41,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:41,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:41,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:41,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:41,527 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 09:59:41,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [131459915] [2020-09-25 09:59:41,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:41,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:59:41,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569228273] [2020-09-25 09:59:41,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:59:41,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:41,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:59:41,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:59:41,533 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 7 states. [2020-09-25 09:59:41,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:41,647 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2020-09-25 09:59:41,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:59:41,649 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-09-25 09:59:41,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:41,651 INFO L225 Difference]: With dead ends: 50 [2020-09-25 09:59:41,651 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 09:59:41,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:41,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 09:59:41,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2020-09-25 09:59:41,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 09:59:41,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2020-09-25 09:59:41,667 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 34 [2020-09-25 09:59:41,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:41,668 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2020-09-25 09:59:41,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:59:41,668 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2020-09-25 09:59:41,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 09:59:41,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:41,670 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:41,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:59:41,671 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:41,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:41,671 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 09:59:41,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:41,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136845128] [2020-09-25 09:59:41,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:41,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:41,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 09:59:42,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:42,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-09-25 09:59:42,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:42,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:42,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 09:59:42,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:42,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:42,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:42,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:42,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:42,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:42,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:42,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:42,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 09:59:42,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:59:42,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-09-25 09:59:42,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:42,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 09:59:42,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:42,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:42,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:42,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 09:59:42,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:42,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:42,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:42,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:42,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 09:59:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:42,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:42,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:42,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 09:59:42,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:42,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:42,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:42,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:42,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:59:42,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:42,677 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 09:59:42,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136845128] [2020-09-25 09:59:42,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:42,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 09:59:42,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650380770] [2020-09-25 09:59:42,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:59:42,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:42,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:59:42,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:59:42,680 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 6 states. [2020-09-25 09:59:42,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:42,797 INFO L93 Difference]: Finished difference Result 94 states and 129 transitions. [2020-09-25 09:59:42,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:59:42,798 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-25 09:59:42,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:42,802 INFO L225 Difference]: With dead ends: 94 [2020-09-25 09:59:42,803 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 09:59:42,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:59:42,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 09:59:42,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2020-09-25 09:59:42,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 09:59:42,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2020-09-25 09:59:42,819 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 35 [2020-09-25 09:59:42,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:42,820 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2020-09-25 09:59:42,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:59:42,820 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2020-09-25 09:59:42,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 09:59:42,823 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:42,823 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:42,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 09:59:42,824 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:42,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:42,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 2 times [2020-09-25 09:59:42,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:42,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461573967] [2020-09-25 09:59:42,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:42,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:42,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:43,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:47,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 09:59:47,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:59:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 09:59:47,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:47,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:47,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:47,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:47,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 09:59:47,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:47,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:47,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:47,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:47,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:47,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:59:47,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:47,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:47,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:47,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:47,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:47,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:47,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:47,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:47,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:48,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:49,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:51,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 09:59:51,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 09:59:51,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3344 [2020-09-25 09:59:51,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:51,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:51,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:59:51,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:59:51,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 09:59:51,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:51,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:51,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:51,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 09:59:51,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:59:51,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 09:59:51,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:51,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:51,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:59:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:51,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 09:59:51,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:51,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 09:59:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:51,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:51,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:51,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:51,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:59:51,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:51,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:51,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:51,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:51,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:51,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:51,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 09:59:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:51,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:51,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:59:51,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:51,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:59:51,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:51,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:51,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:51,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:51,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:51,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:51,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 09:59:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:51,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:51,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 09:59:51,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:51,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 09:59:51,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:51,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:59:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 09:59:51,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 09:59:51,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461573967] [2020-09-25 09:59:51,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 09:59:51,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 09:59:51,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665678784] [2020-09-25 09:59:51,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:59:51,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:59:51,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:59:51,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:59:51,402 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand 7 states. [2020-09-25 09:59:51,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:59:51,531 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2020-09-25 09:59:51,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 09:59:51,532 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 09:59:51,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:59:51,535 INFO L225 Difference]: With dead ends: 68 [2020-09-25 09:59:51,535 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 09:59:51,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:59:51,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 09:59:51,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2020-09-25 09:59:51,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 09:59:51,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2020-09-25 09:59:51,551 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 51 [2020-09-25 09:59:51,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:59:51,552 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2020-09-25 09:59:51,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:59:51,552 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2020-09-25 09:59:51,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 09:59:51,561 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:59:51,561 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:59:51,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 09:59:51,562 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:59:51,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:59:51,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1086233509, now seen corresponding path program 3 times [2020-09-25 09:59:51,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:59:51,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [882766671] [2020-09-25 09:59:51,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:59:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:51,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:51,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:54,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:55,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:55,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:55,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:55,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:55,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:55,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:56,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 09:59:56,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 09:59:56,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 09:59:56,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:56,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:56,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:59:56,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 09:59:56,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 09:59:56,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:56,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:59:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:56,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:59:56,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:59:56,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:59:56,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 09:59:56,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:59:56,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:59:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:59:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:59:56,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:59:56,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:59:56,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 09:59:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:59:56,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:56,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:57,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:59:58,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:01,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:01,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 10:00:01,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 10:00:01,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 10:00:01,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:01,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:01,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:01,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:00:01,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 10:00:01,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:01,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:01,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:01,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:01,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:01,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:01,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:01,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:00:01,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 10:00:01,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:01,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:01,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:01,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:01,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:00:01,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:01,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:01,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:01,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:01,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:01,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:01,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:00:01,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:01,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:01,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:01,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:01,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:01,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:01,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:01,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:01,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:01,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:00:01,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:01,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:01,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:01,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:01,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:01,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:01,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:00:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:01,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:01,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:01,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:02,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:04,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 10:00:04,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 10:00:04,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2436 [2020-09-25 10:00:04,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:04,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:04,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 10:00:04,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:04,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:04,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:04,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:04,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:04,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 10:00:04,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:04,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:04,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:04,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:04,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:00:04,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:04,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:04,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:04,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:04,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:04,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:04,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:04,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:04,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:04,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:04,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:04,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:04,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:04,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:04,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:04,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:04,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:04,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:04,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:04,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:04,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:04,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:04,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:00:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:04,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:04,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:04,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:04,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:00:04,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:04,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:04,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:04,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:04,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:04,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:04,566 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 55 proven. 69 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-09-25 10:00:04,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [882766671] [2020-09-25 10:00:04,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:04,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 10:00:04,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7789339] [2020-09-25 10:00:04,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:00:04,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:04,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:00:04,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:00:04,569 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand 11 states. [2020-09-25 10:00:04,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:04,779 INFO L93 Difference]: Finished difference Result 98 states and 133 transitions. [2020-09-25 10:00:04,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:00:04,780 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2020-09-25 10:00:04,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:04,781 INFO L225 Difference]: With dead ends: 98 [2020-09-25 10:00:04,781 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 10:00:04,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:00:04,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 10:00:04,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2020-09-25 10:00:04,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 10:00:04,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2020-09-25 10:00:04,790 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 85 [2020-09-25 10:00:04,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:04,790 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2020-09-25 10:00:04,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:00:04,791 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2020-09-25 10:00:04,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 10:00:04,792 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:04,792 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:04,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 10:00:04,793 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:04,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:04,793 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 4 times [2020-09-25 10:00:04,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:04,793 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1342555379] [2020-09-25 10:00:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:04,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:04,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:05,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:05,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:07,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:09,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 10:00:09,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 10:00:09,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 10:00:09,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:09,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 10:00:09,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 10:00:09,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:09,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:09,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:09,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:09,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:09,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:09,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:09,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:09,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:09,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:09,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:09,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:09,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:09,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:10,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:11,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:11,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:14,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 10:00:14,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 10:00:14,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 10:00:14,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:14,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:14,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:14,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:00:14,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 10:00:14,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:14,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:14,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:14,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:15,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:00:15,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:15,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 10:00:15,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:15,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:15,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:15,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:15,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 10:00:15,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:15,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:15,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:15,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:15,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:15,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:00:15,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:15,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:15,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:15,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:15,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:15,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:15,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:15,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:15,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:15,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:15,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:00:15,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:15,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:15,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:15,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:15,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:15,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:15,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:00:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:15,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:15,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:17,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 10:00:17,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:00:17,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2284 [2020-09-25 10:00:17,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:17,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 10:00:17,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:17,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:17,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:17,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:00:17,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:17,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 10:00:17,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:17,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:17,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:00:17,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:17,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:17,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:17,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:17,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:17,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:17,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:17,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:17,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:17,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:17,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:17,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:17,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:17,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:17,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:17,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:17,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:00:17,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:17,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:17,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:17,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:17,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:00:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:17,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:17,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:17,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:17,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:00:17,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:17,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:17,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:17,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:17,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:17,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 58 proven. 67 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-09-25 10:00:17,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1342555379] [2020-09-25 10:00:17,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:17,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 10:00:17,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175072811] [2020-09-25 10:00:17,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 10:00:17,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:17,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 10:00:17,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:00:17,505 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 9 states. [2020-09-25 10:00:17,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:17,898 INFO L93 Difference]: Finished difference Result 99 states and 129 transitions. [2020-09-25 10:00:17,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:00:17,900 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-09-25 10:00:17,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:17,904 INFO L225 Difference]: With dead ends: 99 [2020-09-25 10:00:17,904 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 10:00:17,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:00:17,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 10:00:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-25 10:00:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 10:00:17,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-09-25 10:00:17,914 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 87 [2020-09-25 10:00:17,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:17,914 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-09-25 10:00:17,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 10:00:17,915 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-09-25 10:00:17,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 10:00:17,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:17,917 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:17,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 10:00:17,917 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:17,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:17,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 5 times [2020-09-25 10:00:17,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:17,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [981732102] [2020-09-25 10:00:17,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:17,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:17,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:18,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:19,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:20,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:20,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:22,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:22,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 10:00:22,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 10:00:22,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 10:00:22,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:22,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:00:22,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 10:00:22,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 10:00:22,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:22,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:22,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:22,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:22,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:22,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:22,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:22,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:22,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:22,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:22,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:22,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:22,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:22,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:22,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:23,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:23,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:23,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:25,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:25,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:25,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:25,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:25,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:27,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 10:00:27,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 10:00:27,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 10:00:27,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:27,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:00:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:00:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 10:00:27,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:27,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:28,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:29,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 10:00:29,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:00:29,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1535 [2020-09-25 10:00:29,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:29,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 10:00:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:29,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:29,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:29,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:00:29,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:29,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 10:00:29,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:29,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:29,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:29,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:29,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:00:29,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:29,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:29,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:29,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:29,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:29,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:29,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:29,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:29,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:29,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:29,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:29,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:29,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:29,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:29,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:29,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:29,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:29,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:29,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:29,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:29,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:29,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:00:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:29,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:29,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:29,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:29,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:00:29,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:29,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:00:29,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:29,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 10:00:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:29,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking...