/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/eca-rers2012/Problem10_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:47:11,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:47:11,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:47:11,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:47:11,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:47:11,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:47:11,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:47:11,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:47:11,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:47:11,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:47:11,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:47:11,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:47:11,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:47:11,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:47:11,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:47:11,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:47:11,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:47:11,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:47:11,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:47:11,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:47:11,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:47:11,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:47:11,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:47:11,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:47:11,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:47:11,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:47:11,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:47:11,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:47:11,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:47:11,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:47:11,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:47:11,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:47:11,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:47:11,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:47:11,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:47:11,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:47:11,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:47:11,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:47:11,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:47:11,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:47:11,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:47:11,997 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 06:47:12,045 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:47:12,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:47:12,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:47:12,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:47:12,048 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:47:12,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:47:12,049 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:47:12,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:47:12,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:47:12,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:47:12,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:47:12,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:47:12,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:47:12,051 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:47:12,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:47:12,052 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:47:12,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:47:12,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:47:12,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:47:12,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:47:12,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:47:12,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:47:12,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:47:12,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:47:12,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:47:12,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:47:12,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:47:12,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:47:12,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:47:12,055 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 06:47:12,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:47:12,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:47:12,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:47:12,568 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:47:12,569 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:47:12,570 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label19.c [2020-09-25 06:47:12,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97fc96c90/f1c9cbe7ba254442aa9e4065695970e1/FLAGe4c10d0d8 [2020-09-25 06:47:13,314 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:47:13,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label19.c [2020-09-25 06:47:13,348 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97fc96c90/f1c9cbe7ba254442aa9e4065695970e1/FLAGe4c10d0d8 [2020-09-25 06:47:13,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97fc96c90/f1c9cbe7ba254442aa9e4065695970e1 [2020-09-25 06:47:13,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:47:13,523 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:47:13,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:47:13,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:47:13,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:47:13,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:47:13" (1/1) ... [2020-09-25 06:47:13,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f58caab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:13, skipping insertion in model container [2020-09-25 06:47:13,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:47:13" (1/1) ... [2020-09-25 06:47:13,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:47:13,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:47:14,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:47:14,249 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:47:14,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:47:14,369 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:47:14,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:14 WrapperNode [2020-09-25 06:47:14,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:47:14,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:47:14,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:47:14,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:47:14,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:14" (1/1) ... [2020-09-25 06:47:14,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:14" (1/1) ... [2020-09-25 06:47:14,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:14" (1/1) ... [2020-09-25 06:47:14,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:14" (1/1) ... [2020-09-25 06:47:14,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:14" (1/1) ... [2020-09-25 06:47:14,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:14" (1/1) ... [2020-09-25 06:47:14,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:14" (1/1) ... [2020-09-25 06:47:14,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:47:14,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:47:14,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:47:14,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:47:14,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:14" (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 06:47:14,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:47:14,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:47:14,600 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 06:47:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:47:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 06:47:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:47:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:47:14,603 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 06:47:14,603 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:47:14,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:47:14,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:47:16,111 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:47:16,112 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:47:16,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:47:16 BoogieIcfgContainer [2020-09-25 06:47:16,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:47:16,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:47:16,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:47:16,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:47:16,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:47:13" (1/3) ... [2020-09-25 06:47:16,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218dff6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:47:16, skipping insertion in model container [2020-09-25 06:47:16,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:47:14" (2/3) ... [2020-09-25 06:47:16,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218dff6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:47:16, skipping insertion in model container [2020-09-25 06:47:16,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:47:16" (3/3) ... [2020-09-25 06:47:16,140 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label19.c [2020-09-25 06:47:16,154 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:47:16,173 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:47:16,199 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:47:16,244 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:47:16,245 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:47:16,245 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:47:16,245 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:47:16,246 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:47:16,246 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:47:16,246 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:47:16,246 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:47:16,289 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-09-25 06:47:16,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 06:47:16,303 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:47:16,305 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:47:16,305 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:47:16,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:47:16,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1688264769, now seen corresponding path program 1 times [2020-09-25 06:47:16,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:47:16,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302305946] [2020-09-25 06:47:16,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:47:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:16,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:16,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:17,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:17,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 06:47:17,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:47:17,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 555 [2020-09-25 06:47:17,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:17,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:17,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:47:17,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:47:17,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 06:47:17,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:47:17,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:47:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:17,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:17,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:17,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:47:17,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:17,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 06:47:17,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:17,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:47:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:17,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:47:17,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:17,266 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 06:47:17,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302305946] [2020-09-25 06:47:17,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:47:17,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:47:17,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868102745] [2020-09-25 06:47:17,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:47:17,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:47:17,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:47:17,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:47:17,300 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 4 states. [2020-09-25 06:47:19,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:47:19,478 INFO L93 Difference]: Finished difference Result 1163 states and 1589 transitions. [2020-09-25 06:47:19,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:47:19,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-09-25 06:47:19,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:47:19,519 INFO L225 Difference]: With dead ends: 1163 [2020-09-25 06:47:19,519 INFO L226 Difference]: Without dead ends: 634 [2020-09-25 06:47:19,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:47:19,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-09-25 06:47:19,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 580. [2020-09-25 06:47:19,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-09-25 06:47:19,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 732 transitions. [2020-09-25 06:47:19,632 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 732 transitions. Word has length 48 [2020-09-25 06:47:19,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:47:19,633 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 732 transitions. [2020-09-25 06:47:19,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:47:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 732 transitions. [2020-09-25 06:47:19,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-25 06:47:19,641 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:47:19,642 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1] [2020-09-25 06:47:19,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:47:19,643 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:47:19,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:47:19,643 INFO L82 PathProgramCache]: Analyzing trace with hash -2006898993, now seen corresponding path program 1 times [2020-09-25 06:47:19,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:47:19,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592668036] [2020-09-25 06:47:19,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:47:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:19,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:19,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:19,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:20,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:20,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:22,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:22,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-25 06:47:22,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:47:22,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2844 [2020-09-25 06:47:22,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:22,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:22,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:47:22,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 06:47:22,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 06:47:22,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:22,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:47:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:22,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:22,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:22,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:47:22,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:22,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:47:22,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:22,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:22,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:47:22,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:22,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:47:22,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:22,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:47:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:22,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:22,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:22,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 06:47:22,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:22,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 06:47:22,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:22,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:22,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:47:22,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:22,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 06:47:22,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:22,875 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 31 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:47:22,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592668036] [2020-09-25 06:47:22,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:47:22,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 06:47:22,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020424999] [2020-09-25 06:47:22,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:47:22,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:47:22,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:47:22,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:47:22,882 INFO L87 Difference]: Start difference. First operand 580 states and 732 transitions. Second operand 5 states. [2020-09-25 06:47:24,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:47:24,748 INFO L93 Difference]: Finished difference Result 1461 states and 1941 transitions. [2020-09-25 06:47:24,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:47:24,749 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-09-25 06:47:24,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:47:24,756 INFO L225 Difference]: With dead ends: 1461 [2020-09-25 06:47:24,756 INFO L226 Difference]: Without dead ends: 896 [2020-09-25 06:47:24,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:47:24,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2020-09-25 06:47:24,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 884. [2020-09-25 06:47:24,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2020-09-25 06:47:24,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1146 transitions. [2020-09-25 06:47:24,804 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1146 transitions. Word has length 127 [2020-09-25 06:47:24,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:47:24,805 INFO L479 AbstractCegarLoop]: Abstraction has 884 states and 1146 transitions. [2020-09-25 06:47:24,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:47:24,805 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1146 transitions. [2020-09-25 06:47:24,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-09-25 06:47:24,813 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:47:24,813 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:47:24,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:47:24,814 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:47:24,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:47:24,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1780229195, now seen corresponding path program 1 times [2020-09-25 06:47:24,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:47:24,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145349836] [2020-09-25 06:47:24,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:47:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:24,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:25,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:26,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:26,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-09-25 06:47:26,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:47:26,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1169 [2020-09-25 06:47:26,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:26,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:26,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:47:26,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 06:47:26,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 06:47:26,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:26,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:47:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:26,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:26,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:26,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:47:26,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:26,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 06:47:26,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:26,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:47:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:26,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:47:26,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:26,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:47:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:26,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:26,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:26,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-25 06:47:26,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:26,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 06:47:26,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:26,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:26,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:47:26,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:47:26,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 06:47:26,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:26,370 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:47:26,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145349836] [2020-09-25 06:47:26,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:47:26,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:47:26,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277077110] [2020-09-25 06:47:26,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:47:26,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:47:26,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:47:26,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:47:26,374 INFO L87 Difference]: Start difference. First operand 884 states and 1146 transitions. Second operand 7 states. [2020-09-25 06:47:28,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:47:28,322 INFO L93 Difference]: Finished difference Result 2471 states and 3384 transitions. [2020-09-25 06:47:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:47:28,322 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-09-25 06:47:28,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:47:28,335 INFO L225 Difference]: With dead ends: 2471 [2020-09-25 06:47:28,335 INFO L226 Difference]: Without dead ends: 1602 [2020-09-25 06:47:28,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:47:28,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1602 states. [2020-09-25 06:47:28,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1602 to 1522. [2020-09-25 06:47:28,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1522 states. [2020-09-25 06:47:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 1898 transitions. [2020-09-25 06:47:28,408 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 1898 transitions. Word has length 139 [2020-09-25 06:47:28,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:47:28,409 INFO L479 AbstractCegarLoop]: Abstraction has 1522 states and 1898 transitions. [2020-09-25 06:47:28,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:47:28,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 1898 transitions. [2020-09-25 06:47:28,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 06:47:28,419 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:47:28,419 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 06:47:28,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:47:28,420 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:47:28,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:47:28,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1788891619, now seen corresponding path program 1 times [2020-09-25 06:47:28,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:47:28,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761472324] [2020-09-25 06:47:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:47:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:28,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:28,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:28,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:29,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:30,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:30,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:31,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:33,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:33,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-25 06:47:33,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:47:33,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 06:47:33,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:33,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:33,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:47:33,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-09-25 06:47:33,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 06:47:33,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:33,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:47:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:33,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:33,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:33,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:47:33,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:33,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:47:33,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:33,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:33,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:47:33,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:33,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:47:33,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:33,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:47:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:33,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:33,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:33,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 06:47:33,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:33,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 06:47:33,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:33,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:47:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 06:47:33,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:33,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:47:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:33,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:34,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:34,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:47:34,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:34,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 06:47:34,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:34,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:34,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:47:34,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:47:34,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-09-25 06:47:34,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:47:34,168 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 137 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:47:34,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761472324] [2020-09-25 06:47:34,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:47:34,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 06:47:34,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860307009] [2020-09-25 06:47:34,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:47:34,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:47:34,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:47:34,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:47:34,175 INFO L87 Difference]: Start difference. First operand 1522 states and 1898 transitions. Second operand 8 states. [2020-09-25 06:47:37,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:47:37,758 INFO L93 Difference]: Finished difference Result 4671 states and 6582 transitions. [2020-09-25 06:47:37,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 06:47:37,759 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 216 [2020-09-25 06:47:37,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:47:37,794 INFO L225 Difference]: With dead ends: 4671 [2020-09-25 06:47:37,794 INFO L226 Difference]: Without dead ends: 3164 [2020-09-25 06:47:37,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-09-25 06:47:37,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2020-09-25 06:47:37,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 2953. [2020-09-25 06:47:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2953 states. [2020-09-25 06:47:37,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 3868 transitions. [2020-09-25 06:47:37,994 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 3868 transitions. Word has length 216 [2020-09-25 06:47:37,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:47:37,995 INFO L479 AbstractCegarLoop]: Abstraction has 2953 states and 3868 transitions. [2020-09-25 06:47:37,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:47:37,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 3868 transitions. [2020-09-25 06:47:38,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-25 06:47:38,008 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:47:38,009 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:47:38,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:47:38,009 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:47:38,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:47:38,010 INFO L82 PathProgramCache]: Analyzing trace with hash -2140995542, now seen corresponding path program 1 times [2020-09-25 06:47:38,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:47:38,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210740256] [2020-09-25 06:47:38,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:47:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:38,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:38,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:38,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:39,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:40,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:40,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:40,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:41,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:42,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:42,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:42,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:43,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:43,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-25 06:47:43,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 06:47:43,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 06:47:43,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:43,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:47:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-09-25 06:47:43,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-25 06:47:43,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:43,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:47:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:43,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:43,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:43,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:47:43,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:43,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:47:43,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:43,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:43,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:47:43,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:43,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:47:43,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:43,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:47:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:43,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:43,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:43,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:47:43,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:43,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 06:47:43,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:43,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:43,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:47:43,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:43,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 06:47:43,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:43,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-25 06:47:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:43,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:43,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:43,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 06:47:43,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:43,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 06:47:43,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:43,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:43,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:47:43,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:47:43,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 06:47:43,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:43,678 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:47:43,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210740256] [2020-09-25 06:47:43,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:47:43,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:47:43,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810602866] [2020-09-25 06:47:43,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:47:43,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:47:43,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:47:43,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:47:43,683 INFO L87 Difference]: Start difference. First operand 2953 states and 3868 transitions. Second operand 7 states. [2020-09-25 06:47:46,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:47:46,260 INFO L93 Difference]: Finished difference Result 6735 states and 9232 transitions. [2020-09-25 06:47:46,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:47:46,261 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 220 [2020-09-25 06:47:46,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:47:46,282 INFO L225 Difference]: With dead ends: 6735 [2020-09-25 06:47:46,282 INFO L226 Difference]: Without dead ends: 3297 [2020-09-25 06:47:46,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:47:46,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2020-09-25 06:47:46,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2767. [2020-09-25 06:47:46,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2767 states. [2020-09-25 06:47:46,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2767 states to 2767 states and 3544 transitions. [2020-09-25 06:47:46,395 INFO L78 Accepts]: Start accepts. Automaton has 2767 states and 3544 transitions. Word has length 220 [2020-09-25 06:47:46,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:47:46,396 INFO L479 AbstractCegarLoop]: Abstraction has 2767 states and 3544 transitions. [2020-09-25 06:47:46,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:47:46,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2767 states and 3544 transitions. [2020-09-25 06:47:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-25 06:47:46,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:47:46,401 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:47:46,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:47:46,401 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:47:46,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:47:46,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1205854062, now seen corresponding path program 1 times [2020-09-25 06:47:46,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:47:46,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1781113459] [2020-09-25 06:47:46,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:47:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:46,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:46,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:47,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:48,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:48,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:48,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:49,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:50,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:50,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:51,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:51,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 06:47:51,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 06:47:51,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 06:47:51,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:51,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:47:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:47:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 06:47:51,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:51,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:47:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:51,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:51,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:51,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:47:51,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:51,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:47:51,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:51,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:51,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:47:51,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:51,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:47:51,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:51,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:47:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:51,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:51,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:51,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-25 06:47:51,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:51,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 06:47:51,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:51,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:51,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:47:51,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:47:51,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-25 06:47:51,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:51,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-09-25 06:47:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:51,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:51,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:51,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:47:51,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:51,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 06:47:51,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:51,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:51,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:47:51,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 06:47:51,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:47:51,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:51,951 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 64 proven. 72 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 06:47:51,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1781113459] [2020-09-25 06:47:51,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:47:51,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:47:51,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40826336] [2020-09-25 06:47:51,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:47:51,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:47:51,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:47:51,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:47:51,954 INFO L87 Difference]: Start difference. First operand 2767 states and 3544 transitions. Second operand 7 states. [2020-09-25 06:47:54,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:47:54,009 INFO L93 Difference]: Finished difference Result 5377 states and 6929 transitions. [2020-09-25 06:47:54,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:47:54,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 223 [2020-09-25 06:47:54,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:47:54,027 INFO L225 Difference]: With dead ends: 5377 [2020-09-25 06:47:54,028 INFO L226 Difference]: Without dead ends: 2775 [2020-09-25 06:47:54,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:47:54,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2020-09-25 06:47:54,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2767. [2020-09-25 06:47:54,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2767 states. [2020-09-25 06:47:54,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2767 states to 2767 states and 3538 transitions. [2020-09-25 06:47:54,110 INFO L78 Accepts]: Start accepts. Automaton has 2767 states and 3538 transitions. Word has length 223 [2020-09-25 06:47:54,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:47:54,111 INFO L479 AbstractCegarLoop]: Abstraction has 2767 states and 3538 transitions. [2020-09-25 06:47:54,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:47:54,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2767 states and 3538 transitions. [2020-09-25 06:47:54,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-09-25 06:47:54,116 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:47:54,117 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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 06:47:54,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:47:54,117 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:47:54,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:47:54,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1421896856, now seen corresponding path program 1 times [2020-09-25 06:47:54,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:47:54,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94196252] [2020-09-25 06:47:54,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:47:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:54,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:54,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:54,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:54,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:55,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:55,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:56,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:59,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:59,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-25 06:47:59,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 06:47:59,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 06:47:59,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:59,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:59,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:47:59,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-25 06:47:59,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 06:47:59,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:59,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:47:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:59,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:47:59,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:47:59,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:47:59,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:47:59,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:47:59,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:47:59,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:47:59,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:47:59,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:47:59,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:47:59,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:47:59,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-25 06:47:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:47:59,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking...