/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:53:25,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:53:25,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:53:25,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:53:25,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:53:25,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:53:25,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:53:25,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:53:25,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:53:25,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:53:25,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:53:25,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:53:25,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:53:25,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:53:25,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:53:25,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:53:25,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:53:25,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:53:25,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:53:25,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:53:25,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:53:25,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:53:25,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:53:25,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:53:25,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:53:25,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:53:25,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:53:25,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:53:25,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:53:25,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:53:25,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:53:25,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:53:25,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:53:25,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:53:25,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:53:25,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:53:25,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:53:25,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:53:25,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:53:25,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:53:25,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:53:25,510 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 08:53:25,565 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:53:25,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:53:25,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:53:25,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:53:25,569 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:53:25,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:53:25,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:53:25,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:53:25,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:53:25,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:53:25,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:53:25,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:53:25,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:53:25,572 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:53:25,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:53:25,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:53:25,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:53:25,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:53:25,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:53:25,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:53:25,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:53:25,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:53:25,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:53:25,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:53:25,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:53:25,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:53:25,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:53:25,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:53:25,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:53:25,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:53:26,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:53:26,092 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:53:26,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:53:26,102 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:53:26,102 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:53:26,103 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c [2020-09-25 08:53:26,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4334f68a3/dee901d9a0e84d11aac71e4cc685ebb1/FLAGd24ab116f [2020-09-25 08:53:26,729 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:53:26,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_15-2.c [2020-09-25 08:53:26,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4334f68a3/dee901d9a0e84d11aac71e4cc685ebb1/FLAGd24ab116f [2020-09-25 08:53:27,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4334f68a3/dee901d9a0e84d11aac71e4cc685ebb1 [2020-09-25 08:53:27,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:53:27,086 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:53:27,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:53:27,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:53:27,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:53:27,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:53:27" (1/1) ... [2020-09-25 08:53:27,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d85ba32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:27, skipping insertion in model container [2020-09-25 08:53:27,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:53:27" (1/1) ... [2020-09-25 08:53:27,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:53:27,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:53:27,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:53:27,353 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:53:27,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:53:27,390 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:53:27,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:27 WrapperNode [2020-09-25 08:53:27,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:53:27,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:53:27,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:53:27,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:53:27,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:27" (1/1) ... [2020-09-25 08:53:27,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:27" (1/1) ... [2020-09-25 08:53:27,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:27" (1/1) ... [2020-09-25 08:53:27,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:27" (1/1) ... [2020-09-25 08:53:27,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:27" (1/1) ... [2020-09-25 08:53:27,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:27" (1/1) ... [2020-09-25 08:53:27,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:27" (1/1) ... [2020-09-25 08:53:27,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:53:27,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:53:27,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:53:27,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:53:27,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:27" (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 08:53:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:53:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:53:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 08:53:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 08:53:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:53:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:53:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:53:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 08:53:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 08:53:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:53:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:53:27,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:53:27,911 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:53:27,911 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:53:27,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:53:27 BoogieIcfgContainer [2020-09-25 08:53:27,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:53:27,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:53:27,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:53:27,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:53:27,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:53:27" (1/3) ... [2020-09-25 08:53:27,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8df82cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:53:27, skipping insertion in model container [2020-09-25 08:53:27,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:53:27" (2/3) ... [2020-09-25 08:53:27,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8df82cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:53:27, skipping insertion in model container [2020-09-25 08:53:27,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:53:27" (3/3) ... [2020-09-25 08:53:27,926 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_15-2.c [2020-09-25 08:53:27,938 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:53:27,948 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:53:27,972 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:53:28,005 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:53:28,008 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:53:28,008 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:53:28,008 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:53:28,008 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:53:28,010 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:53:28,010 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:53:28,010 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:53:28,032 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 08:53:28,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 08:53:28,039 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:28,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:28,041 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:28,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:28,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 08:53:28,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:28,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [231681490] [2020-09-25 08:53:28,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:28,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:28,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:28,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 08:53:28,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:28,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 08:53:28,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:28,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:28,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:53:28,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:53:28,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:53:28,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:53:28,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:28,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:28,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:28,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:28,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:28,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:53:28,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:28,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:28,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:28,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:28,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:28,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:28,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:28,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:28,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:28,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 08:53:28,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:28,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:28,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:53:28,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:53:28,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:53:28,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:28,381 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 08:53:28,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [231681490] [2020-09-25 08:53:28,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:53:28,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:53:28,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857342555] [2020-09-25 08:53:28,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:53:28,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:28,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:53:28,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:53:28,408 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 08:53:28,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:28,536 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 08:53:28,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:53:28,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 08:53:28,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:28,553 INFO L225 Difference]: With dead ends: 58 [2020-09-25 08:53:28,553 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 08:53:28,560 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 08:53:28,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 08:53:28,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 08:53:28,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 08:53:28,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 08:53:28,625 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 08:53:28,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:28,625 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 08:53:28,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:53:28,626 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 08:53:28,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 08:53:28,628 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:28,628 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 08:53:28,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:53:28,629 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:28,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:28,629 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 08:53:28,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:28,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958545562] [2020-09-25 08:53:28,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:28,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:28,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:28,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 08:53:28,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 08:53:28,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:28,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:53:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:53:28,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:53:28,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:28,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:28,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:28,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:28,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:28,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:28,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:53:28,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:28,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:28,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:28,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:28,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:28,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:28,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:28,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:28,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:28,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:28,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:28,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 08:53:28,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:28,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:28,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:53:28,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:53:28,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:28,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:28,849 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 08:53:28,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958545562] [2020-09-25 08:53:28,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:53:28,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:53:28,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462295300] [2020-09-25 08:53:28,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:53:28,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:28,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:53:28,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:53:28,854 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 08:53:28,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:28,930 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 08:53:28,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:53:28,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 08:53:28,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:28,933 INFO L225 Difference]: With dead ends: 50 [2020-09-25 08:53:28,933 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 08:53:28,934 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 08:53:28,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 08:53:28,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 08:53:28,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 08:53:28,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 08:53:28,945 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 08:53:28,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:28,945 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 08:53:28,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:53:28,945 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 08:53:28,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 08:53:28,947 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:28,948 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:28,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:53:28,948 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:28,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:28,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 08:53:28,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:28,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674294889] [2020-09-25 08:53:28,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:28,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:29,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:29,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:29,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:29,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 08:53:29,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:53:29,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 568 [2020-09-25 08:53:29,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:29,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:53:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:53:29,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:53:29,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:53:29,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:29,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:29,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:29,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:29,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:29,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:53:29,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:29,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:29,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:29,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:29,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:29,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:29,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:29,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:29,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:29,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:53:29,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:53:29,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 08:53:29,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:29,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:29,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:53:29,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:53:29,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:53:29,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:29,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:29,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:29,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:29,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:29,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:29,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 08:53:29,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:29,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:53:29,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:53:29,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:53:29,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:53:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:29,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:29,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:29,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:29,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:29,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:53:29,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:29,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:29,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:53:29,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:29,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:29,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 08:53:29,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674294889] [2020-09-25 08:53:29,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:53:29,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:53:29,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657053382] [2020-09-25 08:53:29,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:53:29,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:29,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:53:29,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:53:29,945 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 08:53:30,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:30,105 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 08:53:30,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:53:30,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 08:53:30,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:30,110 INFO L225 Difference]: With dead ends: 58 [2020-09-25 08:53:30,111 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 08:53:30,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:53:30,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 08:53:30,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 08:53:30,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 08:53:30,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 08:53:30,134 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 08:53:30,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:30,135 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 08:53:30,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:53:30,135 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 08:53:30,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 08:53:30,142 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:30,142 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:30,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:53:30,143 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:30,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:30,144 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 08:53:30,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:30,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622713095] [2020-09-25 08:53:30,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:30,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:30,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:30,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:30,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:30,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:30,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 08:53:30,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:53:30,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 658 [2020-09-25 08:53:30,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:30,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:53:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:53:30,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 08:53:30,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:30,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:30,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:30,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:30,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:30,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:30,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:53:30,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:30,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:30,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:30,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:30,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:30,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:30,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:31,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 08:53:31,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:53:31,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-09-25 08:53:31,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:31,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:31,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:53:31,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:53:31,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:53:31,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:53:31,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:31,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:31,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:31,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:31,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 08:53:31,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:31,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:31,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:53:31,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:31,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:53:31,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:31,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:53:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:31,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:31,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:31,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:31,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:53:31,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:31,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:53:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:31,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:31,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:31,410 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 08:53:31,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622713095] [2020-09-25 08:53:31,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:53:31,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 08:53:31,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888665139] [2020-09-25 08:53:31,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:53:31,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:31,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:53:31,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:53:31,415 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 08:53:31,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:31,557 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 08:53:31,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:53:31,558 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 08:53:31,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:31,560 INFO L225 Difference]: With dead ends: 110 [2020-09-25 08:53:31,560 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 08:53:31,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:53:31,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 08:53:31,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 08:53:31,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 08:53:31,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 08:53:31,574 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 08:53:31,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:31,575 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 08:53:31,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:53:31,575 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 08:53:31,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 08:53:31,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:31,578 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:31,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:53:31,579 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:31,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:31,579 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 08:53:31,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:31,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455822187] [2020-09-25 08:53:31,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:31,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:31,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:36,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:36,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 08:53:36,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:53:36,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:53:36,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:36,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:53:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:53:36,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 08:53:36,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:36,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:36,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:36,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:36,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:36,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:36,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:53:36,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:36,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:36,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:36,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:36,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:36,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:36,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:36,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:36,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:36,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:37,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:37,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:37,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:40,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:40,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 08:53:40,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 08:53:40,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3681 [2020-09-25 08:53:40,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:40,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:40,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:53:40,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:53:40,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:53:40,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:40,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:40,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:40,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:40,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:40,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:53:40,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:53:40,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 08:53:40,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:40,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:40,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:53:40,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:40,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:53:40,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:40,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:40,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:40,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:40,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:40,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:40,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:53:40,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:40,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:40,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:40,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:40,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:40,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:40,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:53:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:40,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:40,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:40,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:40,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:40,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:53:40,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:40,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:40,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:40,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:40,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:53:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:40,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:40,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:40,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:53:40,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:40,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 08:53:40,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:40,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:40,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:53:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:40,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:53:40,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:53:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 08:53:40,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455822187] [2020-09-25 08:53:40,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:53:40,487 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 08:53:40,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166266096] [2020-09-25 08:53:40,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:53:40,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:40,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:53:40,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:53:40,489 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 7 states. [2020-09-25 08:53:40,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:40,622 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2020-09-25 08:53:40,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:53:40,623 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 08:53:40,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:40,625 INFO L225 Difference]: With dead ends: 72 [2020-09-25 08:53:40,625 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 08:53:40,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:53:40,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 08:53:40,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 08:53:40,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 08:53:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 08:53:40,652 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 51 [2020-09-25 08:53:40,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:40,652 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 08:53:40,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:53:40,653 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 08:53:40,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 08:53:40,659 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:40,659 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:40,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:53:40,662 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:40,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:40,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1879014210, now seen corresponding path program 1 times [2020-09-25 08:53:40,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:40,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959261033] [2020-09-25 08:53:40,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:40,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:40,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:40,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:40,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:41,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:41,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:41,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:41,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:41,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:41,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:45,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:45,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 08:53:45,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 08:53:45,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 08:53:45,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:45,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:53:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:53:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 08:53:45,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:45,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:45,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:45,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:45,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:45,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:45,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:53:45,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:45,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:45,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:45,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:45,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:45,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:45,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:45,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:45,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:45,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:45,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:46,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:46,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:50,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 08:53:50,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 08:53:50,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:53:50,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:50,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:50,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:53:50,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:53:50,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 08:53:50,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:50,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:50,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:50,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:53:50,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:53:50,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 08:53:50,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:50,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:50,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:53:50,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:50,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:53:50,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:50,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:50,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:50,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:50,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:50,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:53:50,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:50,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:50,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:50,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:50,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:50,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:50,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:53:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:50,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:50,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:50,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:50,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:53:50,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:50,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:50,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:50,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:53:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:50,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:50,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:50,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:53:50,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:53:50,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-25 08:53:50,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:50,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:50,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:53:50,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:50,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:53:50,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:50,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:53:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:50,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:51,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:51,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:51,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:51,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:53:51,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:51,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:51,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:53:51,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:51,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:53:51,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:51,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:53:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:51,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:51,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:51,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:53:51,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:51,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:53:51,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:51,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:53:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:53:51,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:51,036 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 08:53:51,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959261033] [2020-09-25 08:53:51,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:53:51,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 08:53:51,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821094105] [2020-09-25 08:53:51,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:53:51,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:53:51,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:53:51,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:53:51,040 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 8 states. [2020-09-25 08:53:51,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:53:51,199 INFO L93 Difference]: Finished difference Result 78 states and 105 transitions. [2020-09-25 08:53:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 08:53:51,200 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-09-25 08:53:51,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:53:51,202 INFO L225 Difference]: With dead ends: 78 [2020-09-25 08:53:51,203 INFO L226 Difference]: Without dead ends: 72 [2020-09-25 08:53:51,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:53:51,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-25 08:53:51,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 62. [2020-09-25 08:53:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 08:53:51,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2020-09-25 08:53:51,221 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 67 [2020-09-25 08:53:51,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:53:51,222 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2020-09-25 08:53:51,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:53:51,222 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2020-09-25 08:53:51,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 08:53:51,224 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:53:51,224 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:53:51,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:53:51,225 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:53:51,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:53:51,225 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 08:53:51,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:53:51,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668557038] [2020-09-25 08:53:51,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:53:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:51,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:51,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:51,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:51,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:51,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:51,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:51,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:52,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:53,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:53,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:55,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:55,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:55,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:56,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:56,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 08:53:56,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 08:53:56,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:53:56,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:56,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:56,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:53:56,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:53:56,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 08:53:56,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:53:56,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:53:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:56,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:56,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:53:56,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:53:56,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:53:56,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:53:56,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:53:56,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:53:56,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:53:56,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:53:56,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:53:56,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:53:56,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:53:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:53:56,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:56,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:56,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:56,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:56,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:56,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:56,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:57,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:53:57,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:00,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:00,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:00,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:00,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:01,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 08:54:01,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 08:54:01,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:54:01,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:01,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:01,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:54:01,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:01,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 08:54:01,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:01,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:01,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:01,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:54:01,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:01,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 08:54:01,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:01,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:01,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:54:01,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:01,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:01,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:01,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:01,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:01,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:54:01,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:01,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:01,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:01,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:01,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:01,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:01,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:01,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:01,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:01,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:01,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:54:01,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:01,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:01,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:01,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:01,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:01,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:01,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 08:54:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:01,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:01,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 08:54:01,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:01,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 08:54:01,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:01,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:01,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 08:54:01,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:01,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 08:54:01,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:01,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:01,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:01,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:54:01,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:01,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 08:54:01,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:01,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 08:54:01,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:01,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 08:54:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:01,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:01,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:01,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:01,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:54:01,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:01,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:01,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:01,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:01,620 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 27 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-25 08:54:01,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668557038] [2020-09-25 08:54:01,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:01,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:54:01,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973671310] [2020-09-25 08:54:01,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:54:01,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:01,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:54:01,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:54:01,622 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand 9 states. [2020-09-25 08:54:01,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:01,795 INFO L93 Difference]: Finished difference Result 106 states and 160 transitions. [2020-09-25 08:54:01,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:54:01,795 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-25 08:54:01,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:01,797 INFO L225 Difference]: With dead ends: 106 [2020-09-25 08:54:01,797 INFO L226 Difference]: Without dead ends: 100 [2020-09-25 08:54:01,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:54:01,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-09-25 08:54:01,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 78. [2020-09-25 08:54:01,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 08:54:01,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 111 transitions. [2020-09-25 08:54:01,816 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 111 transitions. Word has length 69 [2020-09-25 08:54:01,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:01,817 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 111 transitions. [2020-09-25 08:54:01,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:54:01,817 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 111 transitions. [2020-09-25 08:54:01,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-25 08:54:01,819 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:01,819 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:01,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:54:01,819 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:01,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:01,820 INFO L82 PathProgramCache]: Analyzing trace with hash 2120760888, now seen corresponding path program 1 times [2020-09-25 08:54:01,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:01,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [124645256] [2020-09-25 08:54:01,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:01,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:01,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:02,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:02,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:02,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:02,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:03,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:04,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:04,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:06,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-25 08:54:06,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 08:54:06,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 08:54:06,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:06,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:06,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:54:06,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:06,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 08:54:06,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:06,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:06,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:06,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:06,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:06,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:06,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:06,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:06,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:06,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:06,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:06,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:06,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:07,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:07,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:07,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:07,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:10,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:11,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:11,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:11,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:11,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:11,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:11,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:11,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 08:54:11,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 08:54:11,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 08:54:11,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:11,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:11,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:54:11,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:54:11,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 08:54:11,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:11,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:11,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:11,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:11,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:11,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:12,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:12,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:13,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:13,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 08:54:13,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:54:13,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1125 [2020-09-25 08:54:13,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:13,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:13,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 08:54:13,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:13,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:13,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:13,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:13,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:13,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:54:13,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:13,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 08:54:13,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:13,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:13,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:13,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:13,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:54:13,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:13,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:13,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:13,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:13,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:13,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:13,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:54:13,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:13,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:13,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:13,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:54:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:13,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:13,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:13,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:13,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:13,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:54:13,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:13,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:13,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:13,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:13,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:13,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:13,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:54:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:13,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:13,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:13,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:13,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:13,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:54:13,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:13,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:13,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:54:13,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:13,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 08:54:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:13,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:13,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:13,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:13,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:13,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:13,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:14,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:14,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 08:54:14,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:54:14,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1398 [2020-09-25 08:54:14,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:14,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:54:14,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 08:54:14,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-25 08:54:14,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:54:14,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:14,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:14,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:14,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:14,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 08:54:14,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:54:14,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 08:54:14,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:14,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:54:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:54:14,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:14,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 08:54:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:14,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:14,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:14,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:14,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:14,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:54:14,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:14,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:14,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:14,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:14,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:14,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 08:54:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:14,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:14,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:14,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:14,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:14,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:54:14,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:14,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:14,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:14,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:14,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:14,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 08:54:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:14,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:14,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:14,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:54:14,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:14,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:54:14,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:14,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:54:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:54:14,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:14,773 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 53 proven. 30 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-09-25 08:54:14,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [124645256] [2020-09-25 08:54:14,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:54:14,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 08:54:14,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053103377] [2020-09-25 08:54:14,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 08:54:14,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:54:14,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 08:54:14,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-09-25 08:54:14,775 INFO L87 Difference]: Start difference. First operand 78 states and 111 transitions. Second operand 12 states. [2020-09-25 08:54:15,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:54:15,174 INFO L93 Difference]: Finished difference Result 196 states and 335 transitions. [2020-09-25 08:54:15,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 08:54:15,175 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 101 [2020-09-25 08:54:15,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:54:15,179 INFO L225 Difference]: With dead ends: 196 [2020-09-25 08:54:15,179 INFO L226 Difference]: Without dead ends: 120 [2020-09-25 08:54:15,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:54:15,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-09-25 08:54:15,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 112. [2020-09-25 08:54:15,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-25 08:54:15,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 155 transitions. [2020-09-25 08:54:15,217 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 155 transitions. Word has length 101 [2020-09-25 08:54:15,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:54:15,219 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 155 transitions. [2020-09-25 08:54:15,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 08:54:15,219 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 155 transitions. [2020-09-25 08:54:15,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-25 08:54:15,221 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:54:15,221 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:54:15,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:54:15,222 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:54:15,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:54:15,222 INFO L82 PathProgramCache]: Analyzing trace with hash -1801853252, now seen corresponding path program 1 times [2020-09-25 08:54:15,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:54:15,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338919766] [2020-09-25 08:54:15,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:54:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:15,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:15,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:16,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:19,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:20,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 08:54:20,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-25 08:54:20,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 08:54:20,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:20,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:20,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 08:54:20,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 08:54:20,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 08:54:20,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:20,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:54:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:20,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:54:20,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:54:20,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:54:20,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:54:20,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:54:20,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:54:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:54:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:54:20,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:54:20,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:54:20,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 08:54:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:54:20,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:20,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:54:22,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking...