/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/Problem02_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:25:25,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:25:25,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:25:25,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:25:25,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:25:25,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:25:25,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:25:25,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:25:25,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:25:25,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:25:25,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:25:25,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:25:25,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:25:25,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:25:25,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:25:25,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:25:25,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:25:25,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:25:25,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:25:25,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:25:25,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:25:25,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:25:25,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:25:25,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:25:25,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:25:25,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:25:25,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:25:25,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:25:25,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:25:25,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:25:25,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:25:25,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:25:25,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:25:25,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:25:25,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:25:25,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:25:25,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:25:25,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:25:25,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:25:25,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:25:25,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:25:25,480 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 12:25:25,524 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:25:25,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:25:25,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:25:25,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:25:25,527 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:25:25,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:25:25,528 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:25:25,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:25:25,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:25:25,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:25:25,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:25:25,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:25:25,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:25:25,531 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:25:25,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:25:25,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:25:25,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:25:25,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:25:25,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:25:25,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:25:25,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:25:25,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:25:25,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:25:25,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:25:25,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:25:25,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:25:25,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:25:25,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:25:25,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:25:25,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:25:25,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:25:25,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:25:25,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:25:25,997 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:25:25,997 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:25:25,998 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label54.c [2020-09-25 12:25:26,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed54914f6/e75ee0fd168743389c4bdcfca7efe71d/FLAG8a292af68 [2020-09-25 12:25:26,799 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:25:26,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label54.c [2020-09-25 12:25:26,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed54914f6/e75ee0fd168743389c4bdcfca7efe71d/FLAG8a292af68 [2020-09-25 12:25:26,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed54914f6/e75ee0fd168743389c4bdcfca7efe71d [2020-09-25 12:25:26,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:25:26,985 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:25:26,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:25:26,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:25:26,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:25:26,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:25:26" (1/1) ... [2020-09-25 12:25:26,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e164ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:26, skipping insertion in model container [2020-09-25 12:25:26,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:25:26" (1/1) ... [2020-09-25 12:25:27,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:25:27,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:25:27,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:25:27,514 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:25:27,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:25:27,835 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:25:27,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:27 WrapperNode [2020-09-25 12:25:27,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:25:27,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:25:27,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:25:27,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:25:27,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:27" (1/1) ... [2020-09-25 12:25:27,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:27" (1/1) ... [2020-09-25 12:25:27,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:27" (1/1) ... [2020-09-25 12:25:27,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:27" (1/1) ... [2020-09-25 12:25:27,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:27" (1/1) ... [2020-09-25 12:25:27,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:27" (1/1) ... [2020-09-25 12:25:27,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:27" (1/1) ... [2020-09-25 12:25:27,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:25:27,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:25:27,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:25:27,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:25:27,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:25:28,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:25:28,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:25:28,085 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 12:25:28,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:25:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 12:25:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:25:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:25:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 12:25:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:25:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:25:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:25:29,449 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:25:29,450 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 12:25:29,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:25:29 BoogieIcfgContainer [2020-09-25 12:25:29,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:25:29,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:25:29,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:25:29,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:25:29,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:25:26" (1/3) ... [2020-09-25 12:25:29,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1c64d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:25:29, skipping insertion in model container [2020-09-25 12:25:29,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:25:27" (2/3) ... [2020-09-25 12:25:29,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1c64d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:25:29, skipping insertion in model container [2020-09-25 12:25:29,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:25:29" (3/3) ... [2020-09-25 12:25:29,471 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label54.c [2020-09-25 12:25:29,482 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:25:29,494 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:25:29,517 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:25:29,552 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:25:29,552 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:25:29,552 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:25:29,553 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:25:29,553 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:25:29,553 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:25:29,553 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:25:29,553 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:25:29,585 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 12:25:29,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-09-25 12:25:29,606 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:25:29,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:25:29,608 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:25:29,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:25:29,616 INFO L82 PathProgramCache]: Analyzing trace with hash 79338610, now seen corresponding path program 1 times [2020-09-25 12:25:29,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:25:29,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400466314] [2020-09-25 12:25:29,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:25:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:29,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:30,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:30,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:30,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:31,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:32,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:32,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:34,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:34,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:34,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-25 12:25:34,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:25:34,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 12:25:34,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:34,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:25:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 12:25:34,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 12:25:34,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:25:35,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:25:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:35,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:35,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:35,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:25:35,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:25:35,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 12:25:35,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:35,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:35,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:25:35,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:25:35,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 12:25:35,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:25:35,248 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 12:25:35,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400466314] [2020-09-25 12:25:35,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:25:35,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 12:25:35,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125364900] [2020-09-25 12:25:35,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 12:25:35,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:25:35,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 12:25:35,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 12:25:35,285 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 4 states. [2020-09-25 12:25:37,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:25:37,528 INFO L93 Difference]: Finished difference Result 1206 states and 1652 transitions. [2020-09-25 12:25:37,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:25:37,531 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-09-25 12:25:37,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:25:37,555 INFO L225 Difference]: With dead ends: 1206 [2020-09-25 12:25:37,556 INFO L226 Difference]: Without dead ends: 628 [2020-09-25 12:25:37,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:25:37,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-09-25 12:25:37,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 615. [2020-09-25 12:25:37,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-09-25 12:25:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 751 transitions. [2020-09-25 12:25:37,670 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 751 transitions. Word has length 127 [2020-09-25 12:25:37,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:25:37,671 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 751 transitions. [2020-09-25 12:25:37,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 12:25:37,671 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 751 transitions. [2020-09-25 12:25:37,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 12:25:37,680 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:25:37,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:25:37,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:25:37,682 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:25:37,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:25:37,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1464054185, now seen corresponding path program 1 times [2020-09-25 12:25:37,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:25:37,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185909001] [2020-09-25 12:25:37,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:25:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:37,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:37,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:38,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:38,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:39,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:39,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:42,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:42,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-09-25 12:25:42,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:25:42,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4634 [2020-09-25 12:25:42,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:42,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:42,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:25:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-09-25 12:25:42,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 12:25:42,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:25:42,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:25:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:42,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:42,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:42,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:25:42,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:25:42,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:25:42,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:42,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:42,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:25:42,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:25:42,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:25:42,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-09-25 12:25:42,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:25:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:42,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:42,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:42,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 12:25:42,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:25:42,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 12:25:42,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:42,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:42,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:25:42,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:25:42,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:25:42,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:25:42,661 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:25:42,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185909001] [2020-09-25 12:25:42,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:25:42,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 12:25:42,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389780043] [2020-09-25 12:25:42,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:25:42,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:25:42,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:25:42,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:25:42,667 INFO L87 Difference]: Start difference. First operand 615 states and 751 transitions. Second operand 5 states. [2020-09-25 12:25:44,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:25:44,393 INFO L93 Difference]: Finished difference Result 1536 states and 1967 transitions. [2020-09-25 12:25:44,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:25:44,394 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 12:25:44,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:25:44,401 INFO L225 Difference]: With dead ends: 1536 [2020-09-25 12:25:44,402 INFO L226 Difference]: Without dead ends: 943 [2020-09-25 12:25:44,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:25:44,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2020-09-25 12:25:44,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 921. [2020-09-25 12:25:44,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-09-25 12:25:44,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1109 transitions. [2020-09-25 12:25:44,480 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1109 transitions. Word has length 161 [2020-09-25 12:25:44,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:25:44,481 INFO L479 AbstractCegarLoop]: Abstraction has 921 states and 1109 transitions. [2020-09-25 12:25:44,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:25:44,482 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1109 transitions. [2020-09-25 12:25:44,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 12:25:44,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:25:44,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:25:44,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:25:44,488 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:25:44,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:25:44,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1343420525, now seen corresponding path program 1 times [2020-09-25 12:25:44,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:25:44,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166026361] [2020-09-25 12:25:44,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:25:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:44,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:44,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:44,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:45,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:46,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:49,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:49,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 12:25:49,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:25:49,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 12:25:49,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:49,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:25:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 12:25:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 12:25:49,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:25:49,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:25:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:49,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:49,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:49,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:25:49,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:25:49,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 12:25:49,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:49,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:49,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:25:49,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:25:49,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:25:49,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:25:49,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:25:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:49,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:50,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:25:50,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 12:25:50,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:25:50,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-25 12:25:50,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:25:50,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:25:50,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:25:50,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:25:50,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 12:25:50,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:25:50,397 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 7 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:25:50,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166026361] [2020-09-25 12:25:50,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:25:50,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 12:25:50,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405712058] [2020-09-25 12:25:50,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 12:25:50,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:25:50,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 12:25:50,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:25:50,401 INFO L87 Difference]: Start difference. First operand 921 states and 1109 transitions. Second operand 12 states. [2020-09-25 12:25:57,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:25:57,002 INFO L93 Difference]: Finished difference Result 3992 states and 5269 transitions. [2020-09-25 12:25:57,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 12:25:57,002 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 165 [2020-09-25 12:25:57,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:25:57,033 INFO L225 Difference]: With dead ends: 3992 [2020-09-25 12:25:57,033 INFO L226 Difference]: Without dead ends: 2990 [2020-09-25 12:25:57,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=192, Invalid=458, Unknown=0, NotChecked=0, Total=650 [2020-09-25 12:25:57,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2020-09-25 12:25:57,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2296. [2020-09-25 12:25:57,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2296 states. [2020-09-25 12:25:57,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 2797 transitions. [2020-09-25 12:25:57,157 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 2797 transitions. Word has length 165 [2020-09-25 12:25:57,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:25:57,158 INFO L479 AbstractCegarLoop]: Abstraction has 2296 states and 2797 transitions. [2020-09-25 12:25:57,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 12:25:57,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 2797 transitions. [2020-09-25 12:25:57,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 12:25:57,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:25:57,175 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:25:57,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:25:57,175 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:25:57,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:25:57,176 INFO L82 PathProgramCache]: Analyzing trace with hash -424840769, now seen corresponding path program 1 times [2020-09-25 12:25:57,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:25:57,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404818633] [2020-09-25 12:25:57,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:25:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:25:57,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:57,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:57,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:57,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:58,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:25:59,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:02,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:26:02,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 12:26:02,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:26:02,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 12:26:02,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:26:02,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:26:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:26:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 12:26:02,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 12:26:02,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:26:02,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:26:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:26:02,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:02,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:26:02,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:26:02,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:26:02,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:26:02,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:26:02,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:26:02,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:26:02,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:26:02,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:26:02,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:26:02,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:26:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:26:02,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:02,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:26:02,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:26:02,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:26:02,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:26:02,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:26:02,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:26:02,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:26:02,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:26:02,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:26:02,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:26:02,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 12:26:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:26:02,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:02,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:26:02,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 12:26:02,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:26:02,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 12:26:02,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:26:02,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:26:02,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:26:02,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:26:02,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 12:26:02,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:26:02,890 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 12:26:02,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404818633] [2020-09-25 12:26:02,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:26:02,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 12:26:02,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643863828] [2020-09-25 12:26:02,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:26:02,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:26:02,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:26:02,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:26:02,893 INFO L87 Difference]: Start difference. First operand 2296 states and 2797 transitions. Second operand 8 states. [2020-09-25 12:26:07,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:26:07,427 INFO L93 Difference]: Finished difference Result 6625 states and 8485 transitions. [2020-09-25 12:26:07,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:26:07,428 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 183 [2020-09-25 12:26:07,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:26:07,462 INFO L225 Difference]: With dead ends: 6625 [2020-09-25 12:26:07,462 INFO L226 Difference]: Without dead ends: 4438 [2020-09-25 12:26:07,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:26:07,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4438 states. [2020-09-25 12:26:07,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4438 to 3879. [2020-09-25 12:26:07,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3879 states. [2020-09-25 12:26:07,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3879 states to 3879 states and 4735 transitions. [2020-09-25 12:26:07,627 INFO L78 Accepts]: Start accepts. Automaton has 3879 states and 4735 transitions. Word has length 183 [2020-09-25 12:26:07,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:26:07,629 INFO L479 AbstractCegarLoop]: Abstraction has 3879 states and 4735 transitions. [2020-09-25 12:26:07,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:26:07,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3879 states and 4735 transitions. [2020-09-25 12:26:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 12:26:07,643 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:26:07,643 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:26:07,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:26:07,644 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:26:07,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:26:07,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1652951760, now seen corresponding path program 1 times [2020-09-25 12:26:07,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:26:07,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401609442] [2020-09-25 12:26:07,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:26:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:26:07,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:07,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:07,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:09,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:09,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:10,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:11,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:11,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:26:12,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:26:12,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 12:26:12,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:26:12,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 12:26:12,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:26:12,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:26:12,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 12:26:12,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 12:26:12,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-09-25 12:26:12,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:26:13,172 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 40 [2020-09-25 12:26:13,353 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 43 [2020-09-25 12:26:13,527 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 38