/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_10-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:35:13,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:35:13,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:35:13,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:35:13,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:35:13,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:35:13,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:35:13,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:35:13,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:35:13,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:35:13,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:35:13,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:35:13,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:35:13,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:35:13,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:35:13,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:35:13,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:35:13,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:35:13,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:35:13,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:35:13,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:35:13,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:35:13,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:35:13,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:35:13,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:35:13,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:35:13,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:35:13,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:35:13,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:35:13,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:35:13,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:35:13,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:35:13,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:35:13,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:35:13,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:35:13,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:35:13,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:35:13,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:35:13,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:35:13,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:35:13,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:35:13,330 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 06:35:13,363 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:35:13,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:35:13,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:35:13,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:35:13,366 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:35:13,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:35:13,367 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:35:13,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:35:13,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:35:13,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:35:13,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:35:13,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:35:13,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:35:13,368 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:35:13,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:35:13,369 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:35:13,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:35:13,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:35:13,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:35:13,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:35:13,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:35:13,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:35:13,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:35:13,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:35:13,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:35:13,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:35:13,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:35:13,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:35:13,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:35:13,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:35:13,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:35:13,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:35:13,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:35:13,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:35:13,916 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:35:13,917 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_10-1.c [2020-09-25 06:35:14,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fa36206cb/c6243a2847c04140bdec3d1231b11b50/FLAG1ad9a7738 [2020-09-25 06:35:14,555 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:35:14,556 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_10-1.c [2020-09-25 06:35:14,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fa36206cb/c6243a2847c04140bdec3d1231b11b50/FLAG1ad9a7738 [2020-09-25 06:35:14,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fa36206cb/c6243a2847c04140bdec3d1231b11b50 [2020-09-25 06:35:14,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:35:14,930 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:35:14,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:35:14,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:35:14,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:35:14,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:35:14" (1/1) ... [2020-09-25 06:35:14,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1003e016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:35:14, skipping insertion in model container [2020-09-25 06:35:14,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:35:14" (1/1) ... [2020-09-25 06:35:14,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:35:14,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:35:15,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:35:15,249 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:35:15,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:35:15,281 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:35:15,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:35:15 WrapperNode [2020-09-25 06:35:15,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:35:15,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:35:15,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:35:15,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:35:15,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:35:15" (1/1) ... [2020-09-25 06:35:15,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:35:15" (1/1) ... [2020-09-25 06:35:15,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:35:15" (1/1) ... [2020-09-25 06:35:15,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:35:15" (1/1) ... [2020-09-25 06:35:15,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:35:15" (1/1) ... [2020-09-25 06:35:15,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:35:15" (1/1) ... [2020-09-25 06:35:15,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:35:15" (1/1) ... [2020-09-25 06:35:15,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:35:15,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:35:15,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:35:15,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:35:15,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:35:15" (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 06:35:15,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:35:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:35:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 06:35:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 06:35:15,479 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:35:15,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:35:15,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:35:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 06:35:15,481 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 06:35:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:35:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:35:15,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:35:15,718 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:35:15,719 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 06:35:15,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:35:15 BoogieIcfgContainer [2020-09-25 06:35:15,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:35:15,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:35:15,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:35:15,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:35:15,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:35:14" (1/3) ... [2020-09-25 06:35:15,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a186817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:35:15, skipping insertion in model container [2020-09-25 06:35:15,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:35:15" (2/3) ... [2020-09-25 06:35:15,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a186817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:35:15, skipping insertion in model container [2020-09-25 06:35:15,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:35:15" (3/3) ... [2020-09-25 06:35:15,746 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_10-1.c [2020-09-25 06:35:15,782 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:35:15,793 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:35:15,818 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:35:15,865 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:35:15,865 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:35:15,865 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:35:15,866 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:35:15,866 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:35:15,866 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:35:15,866 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:35:15,866 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:35:15,887 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 06:35:15,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 06:35:15,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:35:15,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:35:15,896 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:35:15,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:35:15,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 06:35:15,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:35:15,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765243926] [2020-09-25 06:35:15,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:35:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:16,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:16,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:16,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:35:16,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:16,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 06:35:16,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:16,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:35:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:35:16,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:35:16,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:35:16,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:35:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:16,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:16,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:16,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:35:16,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:16,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:35:16,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:16,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:16,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:16,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:16,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:35:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:16,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:16,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:16,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:35:16,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:16,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 06:35:16,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:16,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:35:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:35:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:35:16,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:16,261 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 06:35:16,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765243926] [2020-09-25 06:35:16,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:35:16,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:35:16,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057056281] [2020-09-25 06:35:16,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:35:16,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:35:16,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:35:16,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:35:16,290 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 06:35:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:35:16,445 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 06:35:16,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:35:16,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 06:35:16,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:35:16,465 INFO L225 Difference]: With dead ends: 58 [2020-09-25 06:35:16,465 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 06:35:16,469 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 06:35:16,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 06:35:16,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 06:35:16,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 06:35:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 06:35:16,529 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 06:35:16,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:35:16,529 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 06:35:16,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:35:16,530 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 06:35:16,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 06:35:16,532 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:35:16,533 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 06:35:16,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:35:16,533 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:35:16,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:35:16,534 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 06:35:16,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:35:16,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644703827] [2020-09-25 06:35:16,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:35:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:16,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:16,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:16,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 06:35:16,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:16,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 06:35:16,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:16,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:35:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:35:16,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:35:16,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:16,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:35:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:16,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:16,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:16,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:35:16,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:16,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:35:16,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:16,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:16,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:16,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:35:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:16,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:16,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:16,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:16,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:16,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 06:35:16,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:16,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:16,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:35:16,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:35:16,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:35:16,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:16,731 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 06:35:16,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644703827] [2020-09-25 06:35:16,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:35:16,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:35:16,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513366228] [2020-09-25 06:35:16,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:35:16,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:35:16,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:35:16,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:35:16,736 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 06:35:16,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:35:16,808 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 06:35:16,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:35:16,809 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 06:35:16,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:35:16,811 INFO L225 Difference]: With dead ends: 50 [2020-09-25 06:35:16,811 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 06:35:16,813 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 06:35:16,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 06:35:16,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 06:35:16,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 06:35:16,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 06:35:16,823 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 06:35:16,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:35:16,823 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 06:35:16,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:35:16,824 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 06:35:16,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 06:35:16,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:35:16,826 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 06:35:16,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:35:16,827 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:35:16,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:35:16,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 06:35:16,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:35:16,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1896469064] [2020-09-25 06:35:16,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:35:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:16,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:16,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:16,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:17,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:17,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 06:35:17,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:35:17,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 636 [2020-09-25 06:35:17,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:17,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:17,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:35:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:35:17,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:35:17,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:35:17,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:35:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:17,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:17,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:17,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:35:17,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:17,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:35:17,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:17,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:17,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:17,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:17,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:17,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:17,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:35:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:17,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:17,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:17,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:17,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:17,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 06:35:17,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:35:17,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-09-25 06:35:17,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:17,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:17,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:35:17,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:35:17,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:35:17,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:17,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:17,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:17,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:17,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:35:17,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:17,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:35:17,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:17,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:35:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:17,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:35:17,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:35:17,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 06:35:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:17,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:17,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:17,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:35:17,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:17,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:35:17,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:17,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:17,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:35:17,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:17,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:35:17,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:17,939 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 06:35:17,939 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1896469064] [2020-09-25 06:35:17,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:35:17,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:35:17,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737383054] [2020-09-25 06:35:17,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:35:17,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:35:17,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:35:17,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:35:17,943 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 06:35:18,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:35:18,094 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 06:35:18,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:35:18,095 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 06:35:18,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:35:18,097 INFO L225 Difference]: With dead ends: 58 [2020-09-25 06:35:18,097 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 06:35:18,098 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 06:35:18,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 06:35:18,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 06:35:18,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 06:35:18,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 06:35:18,109 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 06:35:18,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:35:18,110 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 06:35:18,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:35:18,110 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 06:35:18,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 06:35:18,112 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:35:18,112 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 06:35:18,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:35:18,113 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:35:18,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:35:18,113 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 06:35:18,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:35:18,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788651276] [2020-09-25 06:35:18,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:35:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:18,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:18,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:18,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:18,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:18,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:18,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 06:35:18,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:35:18,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-25 06:35:18,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:18,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:18,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:35:18,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:35:18,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:35:18,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:18,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:35:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:18,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:18,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:18,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:35:18,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:18,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:35:18,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:18,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:18,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:18,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:18,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:18,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:35:18,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:35:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:18,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:18,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:18,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:18,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:19,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:19,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:35:19,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:35:19,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 478 [2020-09-25 06:35:19,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:19,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:35:19,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:35:19,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 06:35:19,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:19,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:19,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:19,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:19,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:19,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:19,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 06:35:19,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:19,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:19,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:35:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:35:19,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:19,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:35:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:19,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:19,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:19,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:19,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:19,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:35:19,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:19,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:19,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:35:19,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:35:19,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:19,255 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 06:35:19,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788651276] [2020-09-25 06:35:19,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:35:19,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:35:19,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141997340] [2020-09-25 06:35:19,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:35:19,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:35:19,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:35:19,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:35:19,260 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 06:35:19,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:35:19,406 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2020-09-25 06:35:19,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:35:19,409 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 06:35:19,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:35:19,411 INFO L225 Difference]: With dead ends: 110 [2020-09-25 06:35:19,415 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 06:35:19,417 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 06:35:19,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 06:35:19,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2020-09-25 06:35:19,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 06:35:19,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2020-09-25 06:35:19,440 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 35 [2020-09-25 06:35:19,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:35:19,442 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2020-09-25 06:35:19,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:35:19,443 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2020-09-25 06:35:19,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 06:35:19,447 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:35:19,449 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 06:35:19,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:35:19,450 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:35:19,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:35:19,451 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 06:35:19,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:35:19,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143729145] [2020-09-25 06:35:19,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:35:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:19,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:19,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:19,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:19,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:19,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:19,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:19,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:24,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:24,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 06:35:24,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:35:24,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 06:35:24,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:24,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:24,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:35:24,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:35:24,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 06:35:24,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:24,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:35:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:24,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:24,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:24,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:35:24,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:24,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:35:24,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:24,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:24,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:24,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:35:24,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:35:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:24,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:24,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:24,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:24,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:25,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:25,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:26,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:27,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:27,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 06:35:27,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:35:27,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2999 [2020-09-25 06:35:27,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:27,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:27,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:35:27,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:35:27,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 06:35:27,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:27,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:27,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:27,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:27,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:27,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 06:35:27,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:35:27,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 06:35:27,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:27,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:35:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 06:35:27,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:27,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:27,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:27,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:27,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:35:27,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:27,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:35:27,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:27,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:35:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:27,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:35:27,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:27,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 06:35:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:27,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:27,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:27,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:35:27,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:27,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:35:27,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:27,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:27,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:35:27,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:27,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:35:27,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:27,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 06:35:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:27,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:27,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:27,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:27,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:27,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:35:27,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:27,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:27,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:35:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:35:27,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:35:27,704 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 06:35:27,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143729145] [2020-09-25 06:35:27,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:35:27,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 06:35:27,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028011185] [2020-09-25 06:35:27,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:35:27,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:35:27,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:35:27,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:35:27,707 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand 9 states. [2020-09-25 06:35:27,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:35:27,920 INFO L93 Difference]: Finished difference Result 88 states and 121 transitions. [2020-09-25 06:35:27,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:35:27,922 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-25 06:35:27,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:35:27,924 INFO L225 Difference]: With dead ends: 88 [2020-09-25 06:35:27,924 INFO L226 Difference]: Without dead ends: 82 [2020-09-25 06:35:27,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:35:27,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-09-25 06:35:27,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 68. [2020-09-25 06:35:27,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 06:35:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 92 transitions. [2020-09-25 06:35:27,942 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 92 transitions. Word has length 51 [2020-09-25 06:35:27,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:35:27,943 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 92 transitions. [2020-09-25 06:35:27,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:35:27,943 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 92 transitions. [2020-09-25 06:35:27,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-25 06:35:27,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:35:27,946 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:35:27,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:35:27,947 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:35:27,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:35:27,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-09-25 06:35:27,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:35:27,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2058183032] [2020-09-25 06:35:27,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:35:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:27,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:27,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:28,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:29,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:29,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-25 06:35:29,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:35:29,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1645 [2020-09-25 06:35:29,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:29,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:35:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:35:29,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 06:35:29,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:29,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:35:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:29,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:29,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:29,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:35:29,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:29,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:35:29,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:29,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:29,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:29,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:29,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:29,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:35:29,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:35:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:29,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:29,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:29,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:31,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:31,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 06:35:31,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:35:31,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1605 [2020-09-25 06:35:31,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:31,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:31,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:35:31,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:35:31,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 06:35:31,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:35:31,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:31,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:31,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:31,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:31,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 06:35:31,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:35:31,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 06:35:31,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:31,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:31,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:35:31,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:31,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 06:35:31,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:31,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:31,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:31,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:31,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:31,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:31,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:35:31,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:31,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:35:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:31,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:35:31,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:31,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:35:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:31,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:31,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:31,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:35:31,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:31,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:35:31,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:31,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:31,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:35:31,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:31,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:35:31,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:31,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:35:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:31,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:31,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:31,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:31,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:31,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:35:31,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:31,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:31,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:35:31,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:31,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:35:31,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:35:31,655 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 06:35:31,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2058183032] [2020-09-25 06:35:31,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:35:31,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 06:35:31,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864712386] [2020-09-25 06:35:31,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:35:31,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:35:31,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:35:31,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:35:31,657 INFO L87 Difference]: Start difference. First operand 68 states and 92 transitions. Second operand 9 states. [2020-09-25 06:35:31,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:35:31,829 INFO L93 Difference]: Finished difference Result 96 states and 134 transitions. [2020-09-25 06:35:31,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:35:31,829 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2020-09-25 06:35:31,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:35:31,832 INFO L225 Difference]: With dead ends: 96 [2020-09-25 06:35:31,832 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 06:35:31,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:35:31,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 06:35:31,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 82. [2020-09-25 06:35:31,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-25 06:35:31,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 112 transitions. [2020-09-25 06:35:31,849 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 112 transitions. Word has length 52 [2020-09-25 06:35:31,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:35:31,849 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 112 transitions. [2020-09-25 06:35:31,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:35:31,849 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 112 transitions. [2020-09-25 06:35:31,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 06:35:31,852 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:35:31,853 INFO L422 BasicCegarLoop]: trace histogram [5, 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] [2020-09-25 06:35:31,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:35:31,853 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:35:31,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:35:31,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1208671938, now seen corresponding path program 1 times [2020-09-25 06:35:31,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:35:31,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702492415] [2020-09-25 06:35:31,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:35:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:31,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:31,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:31,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:31,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:32,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:32,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:32,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:32,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:34,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:34,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:34,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:34,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:34,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:35,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:35,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:36,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:36,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 06:35:36,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 06:35:36,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:35:36,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:36,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:36,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:35:36,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:35:36,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 06:35:36,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 06:35:36,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:35:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:36,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:36,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:36,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:35:36,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:36,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:35:36,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:36,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:36,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:36,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:36,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:36,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:35:36,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:35:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:36,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:36,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:36,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:37,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:37,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:37,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:37,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:37,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:37,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:40,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:40,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:41,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:41,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:41,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:41,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 06:35:41,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 06:35:41,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:35:41,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:41,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:41,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:35:41,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:35:41,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 06:35:41,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:35:41,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:41,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:41,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:41,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:42,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:42,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:35:42,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:35:42,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 06:35:42,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:42,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 06:35:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 06:35:42,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:42,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:42,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:42,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:42,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:42,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:42,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:35:42,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:42,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:42,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:35:42,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:42,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:35:42,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:35:42,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:35:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:42,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:42,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:42,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:42,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:42,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:35:42,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:42,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:42,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:35:42,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:42,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:35:42,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:42,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 06:35:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:42,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:42,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:42,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:42,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:42,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:35:42,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:35:42,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 06:35:42,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:42,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:42,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:35:42,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:42,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 06:35:42,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:42,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:42,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:42,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:42,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:42,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:42,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:35:42,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:42,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:42,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:42,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:42,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:42,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:42,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:35:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:42,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:42,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:42,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:42,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:42,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:35:42,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:42,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:42,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:42,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:42,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:42,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 06:35:42,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702492415] [2020-09-25 06:35:42,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:35:42,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 06:35:42,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965904841] [2020-09-25 06:35:42,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:35:42,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:35:42,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:35:42,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:35:42,433 INFO L87 Difference]: Start difference. First operand 82 states and 112 transitions. Second operand 9 states. [2020-09-25 06:35:42,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:35:42,644 INFO L93 Difference]: Finished difference Result 146 states and 217 transitions. [2020-09-25 06:35:42,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:35:42,644 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-09-25 06:35:42,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:35:42,649 INFO L225 Difference]: With dead ends: 146 [2020-09-25 06:35:42,649 INFO L226 Difference]: Without dead ends: 140 [2020-09-25 06:35:42,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:35:42,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-25 06:35:42,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 126. [2020-09-25 06:35:42,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-25 06:35:42,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 191 transitions. [2020-09-25 06:35:42,684 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 191 transitions. Word has length 71 [2020-09-25 06:35:42,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:35:42,685 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 191 transitions. [2020-09-25 06:35:42,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:35:42,685 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 191 transitions. [2020-09-25 06:35:42,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 06:35:42,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:35:42,688 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:35:42,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:35:42,689 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:35:42,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:35:42,689 INFO L82 PathProgramCache]: Analyzing trace with hash 452106143, now seen corresponding path program 1 times [2020-09-25 06:35:42,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:35:42,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500810106] [2020-09-25 06:35:42,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:35:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:42,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:42,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:42,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:42,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:43,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:43,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:43,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:47,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:47,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 06:35:47,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:35:47,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 06:35:47,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:47,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:35:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:35:47,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 06:35:47,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:35:47,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:35:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:47,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:47,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:47,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:35:47,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:47,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:35:47,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:47,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:47,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:47,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:47,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:47,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:47,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:35:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:47,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:47,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:47,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:47,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:47,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:47,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:48,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:48,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:48,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:48,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:48,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:49,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:49,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:52,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:52,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 06:35:52,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 06:35:52,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 06:35:52,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:52,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:35:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 06:35:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 06:35:52,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:52,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:52,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:52,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:52,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:52,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:53,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:53,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 06:35:53,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:35:53,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 884 [2020-09-25 06:35:53,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:53,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:35:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 06:35:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-25 06:35:53,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:53,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:53,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:53,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:53,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:53,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 06:35:53,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:35:53,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 06:35:53,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:53,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:53,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:35:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:53,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 06:35:53,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:53,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:53,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:53,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:53,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:35:53,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:53,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:35:53,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:53,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:35:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:35:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:53,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 06:35:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:53,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:53,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:53,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:35:53,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:53,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:35:53,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:53,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:35:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:53,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:35:53,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:53,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 06:35:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:53,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:53,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:53,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:53,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:53,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:35:53,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:53,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:35:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:35:53,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:35:53,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:53,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 06:35:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:53,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:53,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:53,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:53,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:53,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:35:53,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:35:53,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 06:35:53,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:53,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:53,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:53,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-25 06:35:53,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:53,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:53,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:35:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:53,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:53,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:53,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:53,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:53,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:35:53,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:53,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:53,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:53,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:54,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:54,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:35:54,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:35:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:54,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:54,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:54,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:35:54,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:54,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:35:54,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:54,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:54,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:54,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:54,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:54,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:35:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 28 proven. 33 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-25 06:35:54,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500810106] [2020-09-25 06:35:54,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:35:54,020 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 06:35:54,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195321950] [2020-09-25 06:35:54,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:35:54,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:35:54,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:35:54,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:35:54,022 INFO L87 Difference]: Start difference. First operand 126 states and 191 transitions. Second operand 10 states. [2020-09-25 06:35:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:35:54,214 INFO L93 Difference]: Finished difference Result 310 states and 551 transitions. [2020-09-25 06:35:54,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:35:54,216 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-09-25 06:35:54,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:35:54,222 INFO L225 Difference]: With dead ends: 310 [2020-09-25 06:35:54,222 INFO L226 Difference]: Without dead ends: 190 [2020-09-25 06:35:54,227 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2020-09-25 06:35:54,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-25 06:35:54,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 152. [2020-09-25 06:35:54,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-09-25 06:35:54,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 240 transitions. [2020-09-25 06:35:54,278 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 240 transitions. Word has length 87 [2020-09-25 06:35:54,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:35:54,278 INFO L479 AbstractCegarLoop]: Abstraction has 152 states and 240 transitions. [2020-09-25 06:35:54,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:35:54,278 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 240 transitions. [2020-09-25 06:35:54,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-25 06:35:54,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:35:54,286 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:35:54,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:35:54,286 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:35:54,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:35:54,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1331605367, now seen corresponding path program 1 times [2020-09-25 06:35:54,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:35:54,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792579178] [2020-09-25 06:35:54,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:35:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:54,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:54,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:54,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:54,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:54,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:54,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:54,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:55,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:55,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:58,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:58,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:59,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:59,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 06:35:59,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 06:35:59,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 06:35:59,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:59,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:35:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 06:35:59,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 06:35:59,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:35:59,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:35:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:59,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:59,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:35:59,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:35:59,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:35:59,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:35:59,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:35:59,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:35:59,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:35:59,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:35:59,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:35:59,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:35:59,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:35:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:35:59,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:59,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:59,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:59,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:59,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:59,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:59,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:59,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:35:59,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:04,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:04,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 06:36:04,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 06:36:04,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 06:36:04,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:04,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:36:04,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-09-25 06:36:04,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:36:04,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:04,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:04,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:04,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:04,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 06:36:04,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:04,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:36:04,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:04,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:04,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:04,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:04,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:04,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:04,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:04,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 06:36:04,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:04,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:36:04,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:04,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:04,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:04,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:04,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:04,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:04,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:36:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:04,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:04,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:04,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:04,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:04,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:36:04,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:04,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:04,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:04,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:04,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 06:36:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:04,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:04,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:04,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:36:04,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:04,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:36:04,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:04,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:04,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:04,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:04,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:36:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:04,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:04,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:36:04,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:36:04,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:36:04,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:36:04,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:36:04,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:36:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:36:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:36:04,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:36:04,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:36:04,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 06:36:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:36:04,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:04,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:04,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:04,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:04,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:04,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:05,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:05,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:36:05,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking...