/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 SequenceOfStatements --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=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:52:56,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:52:56,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:52:56,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:52:56,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:52:56,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:52:56,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:52:56,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:52:56,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:52:56,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:52:56,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:52:56,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:52:56,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:52:56,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:52:56,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:52:56,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:52:56,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:52:56,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:52:56,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:52:56,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:52:56,426 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:52:56,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:52:56,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:52:56,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:52:56,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:52:56,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:52:56,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:52:56,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:52:56,445 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:52:56,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:52:56,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:52:56,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:52:56,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:52:56,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:52:56,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:52:56,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:52:56,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:52:56,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:52:56,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:52:56,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:52:56,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:52:56,453 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 [2020-10-14 03:52:56,475 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:52:56,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:52:56,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:52:56,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:52:56,477 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:52:56,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:52:56,478 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:52:56,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:52:56,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:52:56,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:52:56,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:52:56,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:52:56,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:52:56,479 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:52:56,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:52:56,479 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:52:56,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:52:56,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:52:56,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:52:56,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:52:56,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:52:56,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:52:56,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:52:56,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:52:56,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:52:56,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:52:56,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:52:56,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:52:56,482 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:52:56,482 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 -> SequenceOfStatements 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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=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=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 03:52:56,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:52:56,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:52:56,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:52:56,810 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:52:56,811 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:52:56,812 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label54.c [2020-10-14 03:52:56,873 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4338fd74/a496abaf079e49a9b00fb05ae9ce8e39/FLAGd6ebd5cd8 [2020-10-14 03:52:57,553 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:52:57,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label54.c [2020-10-14 03:52:57,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4338fd74/a496abaf079e49a9b00fb05ae9ce8e39/FLAGd6ebd5cd8 [2020-10-14 03:52:57,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4338fd74/a496abaf079e49a9b00fb05ae9ce8e39 [2020-10-14 03:52:57,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:52:57,662 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:52:57,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:52:57,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:52:57,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:52:57,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:52:57" (1/1) ... [2020-10-14 03:52:57,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:57, skipping insertion in model container [2020-10-14 03:52:57,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:52:57" (1/1) ... [2020-10-14 03:52:57,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:52:57,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:52:58,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:52:58,559 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:52:59,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:52:59,164 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:52:59,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:59 WrapperNode [2020-10-14 03:52:59,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:52:59,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:52:59,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:52:59,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:52:59,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:59" (1/1) ... [2020-10-14 03:52:59,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:59" (1/1) ... [2020-10-14 03:52:59,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:59" (1/1) ... [2020-10-14 03:52:59,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:59" (1/1) ... [2020-10-14 03:52:59,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:59" (1/1) ... [2020-10-14 03:52:59,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:59" (1/1) ... [2020-10-14 03:52:59,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:59" (1/1) ... [2020-10-14 03:52:59,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:52:59,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:52:59,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:52:59,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:52:59,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:59" (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 [2020-10-14 03:52:59,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:52:59,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:52:59,434 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:52:59,434 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:52:59,435 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:52:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:52:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:52:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:52:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:52:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:52:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:52:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:52:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:53:04,051 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:53:04,052 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:53:04,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:53:04 BoogieIcfgContainer [2020-10-14 03:53:04,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:53:04,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:53:04,062 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:53:04,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:53:04,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:52:57" (1/3) ... [2020-10-14 03:53:04,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1971b6e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:53:04, skipping insertion in model container [2020-10-14 03:53:04,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:52:59" (2/3) ... [2020-10-14 03:53:04,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1971b6e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:53:04, skipping insertion in model container [2020-10-14 03:53:04,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:53:04" (3/3) ... [2020-10-14 03:53:04,071 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label54.c [2020-10-14 03:53:04,085 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:53:04,096 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:53:04,116 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:53:04,152 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:53:04,152 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:53:04,152 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:53:04,153 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:53:04,153 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:53:04,153 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:53:04,153 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:53:04,153 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:53:04,187 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:53:04,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-14 03:53:04,196 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:04,198 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] [2020-10-14 03:53:04,199 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:04,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:04,208 INFO L82 PathProgramCache]: Analyzing trace with hash -2111146062, now seen corresponding path program 1 times [2020-10-14 03:53:04,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:04,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37052776] [2020-10-14 03:53:04,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:04,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:04,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:04,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 03:53:04,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:04,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-10-14 03:53:04,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:04,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:04,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:53:04,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:53:04,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 03:53:04,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:53:05,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:05,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:05,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:05,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:05,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:05,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:53:05,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:05,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:05,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:53:05,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:05,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:53:05,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37052776] [2020-10-14 03:53:05,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:53:05,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:53:05,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628847703] [2020-10-14 03:53:05,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:53:05,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:05,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:53:05,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:53:05,064 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:53:08,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:08,943 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-14 03:53:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:53:08,946 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-14 03:53:08,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:08,969 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:53:08,969 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:53:08,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:53:09,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:53:09,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-14 03:53:09,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 03:53:09,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-14 03:53:09,092 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 31 [2020-10-14 03:53:09,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:09,093 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-14 03:53:09,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:53:09,093 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-14 03:53:09,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-14 03:53:09,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:09,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:09,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:53:09,100 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:09,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:09,100 INFO L82 PathProgramCache]: Analyzing trace with hash 482410430, now seen corresponding path program 1 times [2020-10-14 03:53:09,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:09,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071276889] [2020-10-14 03:53:09,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:09,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:09,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:09,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:09,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 03:53:09,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:53:09,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783 [2020-10-14 03:53:09,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:09,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:09,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:09,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:53:09,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 03:53:09,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:09,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:09,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:09,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:09,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:09,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:09,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:53:09,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:09,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:09,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:09,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:09,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:09,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:10,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:10,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:10,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:10,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:53:10,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:10,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:53:10,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:10,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:10,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:10,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:10,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:53:10,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:10,145 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:53:10,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071276889] [2020-10-14 03:53:10,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:10,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:53:10,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641587404] [2020-10-14 03:53:10,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:53:10,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:10,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:53:10,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:53:10,149 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 5 states. [2020-10-14 03:53:13,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:13,994 INFO L93 Difference]: Finished difference Result 1724 states and 2649 transitions. [2020-10-14 03:53:13,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:53:13,995 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-10-14 03:53:13,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:14,003 INFO L225 Difference]: With dead ends: 1724 [2020-10-14 03:53:14,004 INFO L226 Difference]: Without dead ends: 1038 [2020-10-14 03:53:14,006 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 [2020-10-14 03:53:14,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-14 03:53:14,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1034. [2020-10-14 03:53:14,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2020-10-14 03:53:14,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1429 transitions. [2020-10-14 03:53:14,059 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1429 transitions. Word has length 107 [2020-10-14 03:53:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:14,092 INFO L479 AbstractCegarLoop]: Abstraction has 1034 states and 1429 transitions. [2020-10-14 03:53:14,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:53:14,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1429 transitions. [2020-10-14 03:53:14,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-14 03:53:14,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:14,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:14,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:53:14,096 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:14,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:14,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1123822359, now seen corresponding path program 1 times [2020-10-14 03:53:14,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:14,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017486900] [2020-10-14 03:53:14,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:14,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:14,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:15,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:15,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-14 03:53:15,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:53:15,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1771 [2020-10-14 03:53:15,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:15,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:15,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:15,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 03:53:15,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 03:53:15,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:15,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:16,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:16,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:16,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:16,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:16,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:53:16,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:16,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:16,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:16,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:16,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:16,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:16,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:16,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:53:16,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:16,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 03:53:16,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:16,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:16,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:16,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:16,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:53:16,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:16,259 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:53:16,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017486900] [2020-10-14 03:53:16,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:16,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:53:16,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009793445] [2020-10-14 03:53:16,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:53:16,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:16,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:53:16,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:53:16,263 INFO L87 Difference]: Start difference. First operand 1034 states and 1429 transitions. Second operand 5 states. [2020-10-14 03:53:20,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:20,249 INFO L93 Difference]: Finished difference Result 2408 states and 3480 transitions. [2020-10-14 03:53:20,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:53:20,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-10-14 03:53:20,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:20,264 INFO L225 Difference]: With dead ends: 2408 [2020-10-14 03:53:20,264 INFO L226 Difference]: Without dead ends: 1380 [2020-10-14 03:53:20,267 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 [2020-10-14 03:53:20,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-10-14 03:53:20,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1376. [2020-10-14 03:53:20,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-10-14 03:53:20,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1849 transitions. [2020-10-14 03:53:20,322 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 1849 transitions. Word has length 160 [2020-10-14 03:53:20,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:20,324 INFO L479 AbstractCegarLoop]: Abstraction has 1376 states and 1849 transitions. [2020-10-14 03:53:20,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:53:20,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 1849 transitions. [2020-10-14 03:53:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-14 03:53:20,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:20,339 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, 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, 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] [2020-10-14 03:53:20,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:53:20,343 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:20,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:20,344 INFO L82 PathProgramCache]: Analyzing trace with hash 175729966, now seen corresponding path program 1 times [2020-10-14 03:53:20,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:20,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1373349844] [2020-10-14 03:53:20,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:20,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:20,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:20,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:21,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:24,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:24,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-14 03:53:24,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:53:24,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4232 [2020-10-14 03:53:24,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:24,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:24,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:24,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:53:24,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:53:24,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:24,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:24,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:24,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:24,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:24,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:24,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:53:24,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:24,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:24,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:24,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:24,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:24,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:24,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:24,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:24,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:24,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:53:24,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:24,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:53:24,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:24,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:24,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:24,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:53:24,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:24,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 03:53:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:24,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:24,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:24,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:24,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:24,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 03:53:24,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:24,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:24,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:24,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:24,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:53:24,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:25,085 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:53:25,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1373349844] [2020-10-14 03:53:25,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:25,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:25,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680736697] [2020-10-14 03:53:25,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:25,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:25,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:25,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:25,088 INFO L87 Difference]: Start difference. First operand 1376 states and 1849 transitions. Second operand 7 states. [2020-10-14 03:53:29,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:29,456 INFO L93 Difference]: Finished difference Result 3460 states and 4779 transitions. [2020-10-14 03:53:29,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:53:29,457 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2020-10-14 03:53:29,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:29,466 INFO L225 Difference]: With dead ends: 3460 [2020-10-14 03:53:29,466 INFO L226 Difference]: Without dead ends: 1739 [2020-10-14 03:53:29,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:53:29,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2020-10-14 03:53:29,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1725. [2020-10-14 03:53:29,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1725 states. [2020-10-14 03:53:29,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 1927 transitions. [2020-10-14 03:53:29,517 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 1927 transitions. Word has length 217 [2020-10-14 03:53:29,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:29,518 INFO L479 AbstractCegarLoop]: Abstraction has 1725 states and 1927 transitions. [2020-10-14 03:53:29,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:29,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 1927 transitions. [2020-10-14 03:53:29,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2020-10-14 03:53:29,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:29,525 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:29,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:53:29,526 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:29,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:29,527 INFO L82 PathProgramCache]: Analyzing trace with hash -63018938, now seen corresponding path program 1 times [2020-10-14 03:53:29,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:29,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272272666] [2020-10-14 03:53:29,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:29,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:29,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:30,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:31,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:33,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:34,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:34,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 399 [2020-10-14 03:53:34,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:53:34,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 03:53:34,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:34,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:34,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:34,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 03:53:34,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:53:34,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:34,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:34,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:34,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:34,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:34,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:34,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:53:34,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:34,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:34,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:34,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:34,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:34,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:34,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:34,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:34,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:34,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:53:34,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:34,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 03:53:34,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:34,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:34,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:34,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:53:34,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:34,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 03:53:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:34,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:35,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:35,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:53:35,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:35,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 03:53:35,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:35,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:35,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:35,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:35,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:53:35,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:53:35,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-14 03:53:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:35,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:35,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:35,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:35,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:35,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 03:53:35,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:35,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:35,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:35,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:53:35,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:35,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:35,603 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 188 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:53:35,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272272666] [2020-10-14 03:53:35,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:35,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:35,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522651611] [2020-10-14 03:53:35,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:35,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:35,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:35,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:35,607 INFO L87 Difference]: Start difference. First operand 1725 states and 1927 transitions. Second operand 7 states. [2020-10-14 03:53:39,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:39,132 INFO L93 Difference]: Finished difference Result 5266 states and 6172 transitions. [2020-10-14 03:53:39,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:53:39,133 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 385 [2020-10-14 03:53:39,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:39,158 INFO L225 Difference]: With dead ends: 5266 [2020-10-14 03:53:39,158 INFO L226 Difference]: Without dead ends: 3547 [2020-10-14 03:53:39,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:53:39,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3547 states. [2020-10-14 03:53:39,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3547 to 3443. [2020-10-14 03:53:39,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3443 states. [2020-10-14 03:53:39,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3443 states to 3443 states and 3730 transitions. [2020-10-14 03:53:39,295 INFO L78 Accepts]: Start accepts. Automaton has 3443 states and 3730 transitions. Word has length 385 [2020-10-14 03:53:39,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:39,296 INFO L479 AbstractCegarLoop]: Abstraction has 3443 states and 3730 transitions. [2020-10-14 03:53:39,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:39,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3443 states and 3730 transitions. [2020-10-14 03:53:39,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2020-10-14 03:53:39,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:39,306 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:39,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:53:39,307 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:39,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:39,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1090456513, now seen corresponding path program 1 times [2020-10-14 03:53:39,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:39,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139853094] [2020-10-14 03:53:39,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:39,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:39,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:40,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:40,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:43,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:44,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:44,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 462 [2020-10-14 03:53:44,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:53:44,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5058 [2020-10-14 03:53:44,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:44,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:53:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:53:44,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:44,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:44,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:44,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:44,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:44,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:44,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:53:44,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:44,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:44,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:44,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:44,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:44,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:53:44,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:44,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:44,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:44,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:53:44,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:44,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 03:53:44,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:44,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:44,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:44,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:44,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 03:53:44,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:44,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 03:53:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:44,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:44,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:44,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:53:44,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:44,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-14 03:53:44,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:44,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:44,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:44,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:53:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:45,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 03:53:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:45,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:45,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:45,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:45,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:45,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:53:45,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:45,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:45,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:45,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:53:45,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:45,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:45,760 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 217 proven. 109 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:53:45,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139853094] [2020-10-14 03:53:45,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:45,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:53:45,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630518705] [2020-10-14 03:53:45,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:53:45,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:45,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:53:45,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:53:45,763 INFO L87 Difference]: Start difference. First operand 3443 states and 3730 transitions. Second operand 8 states. [2020-10-14 03:53:49,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:49,709 INFO L93 Difference]: Finished difference Result 10312 states and 11506 transitions. [2020-10-14 03:53:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 03:53:49,711 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 448 [2020-10-14 03:53:49,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:49,742 INFO L225 Difference]: With dead ends: 10312 [2020-10-14 03:53:49,742 INFO L226 Difference]: Without dead ends: 6875 [2020-10-14 03:53:49,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 03:53:49,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6875 states. [2020-10-14 03:53:49,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6875 to 6856. [2020-10-14 03:53:49,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6856 states. [2020-10-14 03:53:49,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6856 states to 6856 states and 7591 transitions. [2020-10-14 03:53:49,900 INFO L78 Accepts]: Start accepts. Automaton has 6856 states and 7591 transitions. Word has length 448 [2020-10-14 03:53:49,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:49,900 INFO L479 AbstractCegarLoop]: Abstraction has 6856 states and 7591 transitions. [2020-10-14 03:53:49,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:53:49,900 INFO L276 IsEmpty]: Start isEmpty. Operand 6856 states and 7591 transitions. [2020-10-14 03:53:49,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2020-10-14 03:53:49,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:49,940 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:49,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:53:49,941 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:49,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:49,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1464167278, now seen corresponding path program 1 times [2020-10-14 03:53:49,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:49,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881652638] [2020-10-14 03:53:49,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:50,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:50,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:50,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:50,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:55,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:55,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 997 [2020-10-14 03:53:55,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:53:55,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 03:53:55,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:55,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 456 [2020-10-14 03:53:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:53:55,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:55,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:55,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:55,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:55,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:55,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:55,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:53:55,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:55,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:55,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:55,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:55,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:55,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:55,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:53:55,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:55,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:53:55,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:55,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:55,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:55,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:55,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:53:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:55,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:55,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:55,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:53:55,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:55,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 03:53:55,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:55,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:55,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:55,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:55,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:53:55,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:55,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 03:53:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:55,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:55,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:55,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:53:55,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:55,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 03:53:55,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:55,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:55,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 03:53:55,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:55,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2020-10-14 03:53:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:56,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:56,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:56,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:56,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:56,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:53:56,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:56,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:53:56,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:56,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:56,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 704 [2020-10-14 03:53:56,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:56,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:56,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:56,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:53:56,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:56,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 03:53:56,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:56,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:56,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:56,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:53:56,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:56,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:57,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1625 backedges. 419 proven. 248 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2020-10-14 03:53:57,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881652638] [2020-10-14 03:53:57,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:57,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:57,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609312252] [2020-10-14 03:53:57,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:57,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:57,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:57,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:57,085 INFO L87 Difference]: Start difference. First operand 6856 states and 7591 transitions. Second operand 7 states. [2020-10-14 03:54:00,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:54:00,077 INFO L93 Difference]: Finished difference Result 15443 states and 17163 transitions. [2020-10-14 03:54:00,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:54:00,078 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 979 [2020-10-14 03:54:00,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:54:00,112 INFO L225 Difference]: With dead ends: 15443 [2020-10-14 03:54:00,112 INFO L226 Difference]: Without dead ends: 8593 [2020-10-14 03:54:00,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:54:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8593 states. [2020-10-14 03:54:00,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8593 to 8583. [2020-10-14 03:54:00,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8583 states. [2020-10-14 03:54:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8583 states to 8583 states and 9473 transitions. [2020-10-14 03:54:00,322 INFO L78 Accepts]: Start accepts. Automaton has 8583 states and 9473 transitions. Word has length 979 [2020-10-14 03:54:00,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:54:00,323 INFO L479 AbstractCegarLoop]: Abstraction has 8583 states and 9473 transitions. [2020-10-14 03:54:00,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:54:00,323 INFO L276 IsEmpty]: Start isEmpty. Operand 8583 states and 9473 transitions. [2020-10-14 03:54:00,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1001 [2020-10-14 03:54:00,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:54:00,385 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:54:00,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:54:00,386 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:54:00,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:54:00,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1867211441, now seen corresponding path program 1 times [2020-10-14 03:54:00,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:54:00,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800065935] [2020-10-14 03:54:00,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:54:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:00,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:00,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:01,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:02,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:04,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:05,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:05,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1016 [2020-10-14 03:54:05,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:54:05,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 03:54:05,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:05,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:05,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 456 [2020-10-14 03:54:05,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:54:05,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:05,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:54:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:05,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:05,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:05,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:54:05,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:05,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:54:05,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:05,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:05,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:05,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:05,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:05,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:54:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:05,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:05,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:05,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:54:05,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:05,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:54:05,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:05,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:05,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:05,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:05,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:05,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:05,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:54:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:05,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:05,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:05,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:54:05,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:05,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 03:54:05,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:05,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:05,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:54:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:05,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:54:05,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:05,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 03:54:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:06,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:06,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:06,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:54:06,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:06,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 03:54:06,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:06,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:54:06,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:54:06,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:06,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2020-10-14 03:54:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:06,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:06,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:06,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:54:06,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:06,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 03:54:06,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:06,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:54:06,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:06,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 547 proven. 251 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2020-10-14 03:54:08,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800065935] [2020-10-14 03:54:08,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:54:08,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:54:08,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248624649] [2020-10-14 03:54:08,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:54:08,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:54:08,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:54:08,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:54:08,011 INFO L87 Difference]: Start difference. First operand 8583 states and 9473 transitions. Second operand 7 states. [2020-10-14 03:54:10,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:54:10,927 INFO L93 Difference]: Finished difference Result 17174 states and 18970 transitions. [2020-10-14 03:54:10,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:54:10,928 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1000 [2020-10-14 03:54:10,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:54:10,960 INFO L225 Difference]: With dead ends: 17174 [2020-10-14 03:54:10,960 INFO L226 Difference]: Without dead ends: 8597 [2020-10-14 03:54:10,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:54:10,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8597 states. [2020-10-14 03:54:11,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8597 to 8587. [2020-10-14 03:54:11,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8587 states. [2020-10-14 03:54:11,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8587 states to 8587 states and 9479 transitions. [2020-10-14 03:54:11,259 INFO L78 Accepts]: Start accepts. Automaton has 8587 states and 9479 transitions. Word has length 1000 [2020-10-14 03:54:11,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:54:11,261 INFO L479 AbstractCegarLoop]: Abstraction has 8587 states and 9479 transitions. [2020-10-14 03:54:11,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:54:11,261 INFO L276 IsEmpty]: Start isEmpty. Operand 8587 states and 9479 transitions. [2020-10-14 03:54:11,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2020-10-14 03:54:11,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:54:11,290 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:54:11,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:54:11,291 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:54:11,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:54:11,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1298600663, now seen corresponding path program 1 times [2020-10-14 03:54:11,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:54:11,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [767789107] [2020-10-14 03:54:11,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:54:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:11,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:11,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:11,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:12,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:15,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:16,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:16,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1036 [2020-10-14 03:54:16,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:54:16,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-10-14 03:54:16,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:16,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:16,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:16,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-14 03:54:16,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:54:16,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:54:16,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:54:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:16,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:16,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:16,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:54:16,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:16,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:54:16,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:16,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:16,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:54:16,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:54:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:16,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:16,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:16,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:54:16,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:16,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:54:16,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:16,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:16,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:16,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:54:16,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:54:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:16,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:16,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:16,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:54:16,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:16,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:54:16,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:16,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:16,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:16,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:16,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:16,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:16,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:54:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:16,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:16,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:16,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:54:16,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:16,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 03:54:16,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:16,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:16,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:54:16,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:16,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:54:16,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:16,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:54:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:17,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:17,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:17,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:54:17,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:17,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-14 03:54:17,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:17,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:54:17,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:54:17,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:17,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 743 [2020-10-14 03:54:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:17,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:17,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:17,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:54:17,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:17,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 03:54:17,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:17,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:17,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:17,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:54:17,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:17,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:18,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1578 backedges. 595 proven. 251 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2020-10-14 03:54:18,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [767789107] [2020-10-14 03:54:18,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:54:18,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:54:18,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240370389] [2020-10-14 03:54:18,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:54:18,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:54:18,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:54:18,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:54:18,855 INFO L87 Difference]: Start difference. First operand 8587 states and 9479 transitions. Second operand 7 states. [2020-10-14 03:54:22,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:54:22,823 INFO L93 Difference]: Finished difference Result 18233 states and 20200 transitions. [2020-10-14 03:54:22,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:54:22,824 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1018 [2020-10-14 03:54:22,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:54:22,856 INFO L225 Difference]: With dead ends: 18233 [2020-10-14 03:54:22,857 INFO L226 Difference]: Without dead ends: 9652 [2020-10-14 03:54:22,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:54:22,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9652 states. [2020-10-14 03:54:23,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9652 to 9608. [2020-10-14 03:54:23,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9608 states. [2020-10-14 03:54:23,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9608 states to 9608 states and 10542 transitions. [2020-10-14 03:54:23,063 INFO L78 Accepts]: Start accepts. Automaton has 9608 states and 10542 transitions. Word has length 1018 [2020-10-14 03:54:23,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:54:23,065 INFO L479 AbstractCegarLoop]: Abstraction has 9608 states and 10542 transitions. [2020-10-14 03:54:23,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:54:23,066 INFO L276 IsEmpty]: Start isEmpty. Operand 9608 states and 10542 transitions. [2020-10-14 03:54:23,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2020-10-14 03:54:23,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:54:23,096 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-10-14 03:54:23,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:54:23,096 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:54:23,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:54:23,097 INFO L82 PathProgramCache]: Analyzing trace with hash -713697385, now seen corresponding path program 1 times [2020-10-14 03:54:23,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:54:23,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320848491] [2020-10-14 03:54:23,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:54:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:23,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:23,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:23,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:24,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:28,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:28,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1062 [2020-10-14 03:54:28,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:54:28,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 03:54:28,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:28,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:28,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:28,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:54:28,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:54:28,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:28,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:54:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:28,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:28,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:28,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:54:28,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:28,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:54:28,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:28,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:28,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:28,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:28,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:28,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:54:28,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:54:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:28,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:28,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:28,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:54:28,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:28,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:54:28,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:28,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:28,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:28,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:28,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:54:28,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:54:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:28,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:28,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:28,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:54:28,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:28,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:54:28,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:28,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:54:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:54:28,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:54:28,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:54:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:28,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:28,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:28,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:54:28,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:28,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 03:54:28,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:28,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:28,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:28,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:54:28,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:54:28,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:28,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:54:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:29,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:29,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:29,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:54:29,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:29,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:54:29,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:29,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:54:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:29,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:29,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2020-10-14 03:54:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:29,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:29,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:29,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:54:29,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:29,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:54:29,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:29,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:29,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:54:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:29,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:29,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-14 03:54:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:29,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:29,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:29,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:54:29,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:29,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 03:54:29,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:29,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:29,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:29,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:54:29,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:29,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:29,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:54:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:29,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:29,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:29,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:54:29,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:29,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:54:29,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:29,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:29,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:29,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:29,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 380 proven. 389 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2020-10-14 03:54:29,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320848491] [2020-10-14 03:54:29,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:54:29,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:54:29,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276744598] [2020-10-14 03:54:29,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:54:29,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:54:29,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:54:29,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:54:29,858 INFO L87 Difference]: Start difference. First operand 9608 states and 10542 transitions. Second operand 7 states. [2020-10-14 03:54:33,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:54:33,824 INFO L93 Difference]: Finished difference Result 23803 states and 27164 transitions. [2020-10-14 03:54:33,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:54:33,825 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1040 [2020-10-14 03:54:33,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:54:33,881 INFO L225 Difference]: With dead ends: 23803 [2020-10-14 03:54:33,881 INFO L226 Difference]: Without dead ends: 14201 [2020-10-14 03:54:33,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:54:33,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14201 states. [2020-10-14 03:54:34,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14201 to 13690. [2020-10-14 03:54:34,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13690 states. [2020-10-14 03:54:34,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13690 states to 13690 states and 15024 transitions. [2020-10-14 03:54:34,196 INFO L78 Accepts]: Start accepts. Automaton has 13690 states and 15024 transitions. Word has length 1040 [2020-10-14 03:54:34,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:54:34,198 INFO L479 AbstractCegarLoop]: Abstraction has 13690 states and 15024 transitions. [2020-10-14 03:54:34,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:54:34,198 INFO L276 IsEmpty]: Start isEmpty. Operand 13690 states and 15024 transitions. [2020-10-14 03:54:34,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1067 [2020-10-14 03:54:34,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:54:34,234 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2020-10-14 03:54:34,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:54:34,235 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:54:34,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:54:34,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1747955261, now seen corresponding path program 1 times [2020-10-14 03:54:34,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:54:34,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171634283] [2020-10-14 03:54:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:54:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:34,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:34,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:35,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:35,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:39,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:39,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1088 [2020-10-14 03:54:39,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:54:39,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 03:54:39,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:39,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:39,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:39,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:54:39,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:54:39,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:39,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:54:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:39,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:39,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:39,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:54:39,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:39,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:54:39,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:39,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:39,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:39,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:39,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:39,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:39,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:54:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:39,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:39,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:39,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:54:39,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:39,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 03:54:39,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:39,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:39,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:39,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:39,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:54:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:39,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:39,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:39,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:54:39,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:39,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 03:54:39,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:39,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:54:39,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:39,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:54:39,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:54:39,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:54:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:39,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:39,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:39,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:54:39,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:39,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 03:54:39,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:39,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:39,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:39,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:54:39,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:54:39,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:40,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-14 03:54:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:40,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:40,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:40,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:54:40,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:54:40,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:40,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:54:40,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:40,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:40,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2020-10-14 03:54:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:40,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:40,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:40,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:54:40,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:54:40,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:40,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:40,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:40,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:54:40,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:40,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:40,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2020-10-14 03:54:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:40,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:40,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:40,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:54:40,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 03:54:40,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:40,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:54:40,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:40,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:40,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:54:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:40,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:40,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:40,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:54:40,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:40,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:54:40,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:40,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:40,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:40,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:40,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2022 backedges. 406 proven. 389 refuted. 0 times theorem prover too weak. 1227 trivial. 0 not checked. [2020-10-14 03:54:40,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171634283] [2020-10-14 03:54:40,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:54:40,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:54:40,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940798754] [2020-10-14 03:54:40,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:54:40,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:54:40,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:54:40,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:54:40,931 INFO L87 Difference]: Start difference. First operand 13690 states and 15024 transitions. Second operand 7 states. [2020-10-14 03:54:45,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:54:45,155 INFO L93 Difference]: Finished difference Result 31441 states and 34904 transitions. [2020-10-14 03:54:45,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:54:45,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1066 [2020-10-14 03:54:45,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:54:45,208 INFO L225 Difference]: With dead ends: 31441 [2020-10-14 03:54:45,208 INFO L226 Difference]: Without dead ends: 17757 [2020-10-14 03:54:45,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:54:45,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17757 states. [2020-10-14 03:54:45,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17757 to 17753. [2020-10-14 03:54:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17753 states. [2020-10-14 03:54:45,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17753 states to 17753 states and 19704 transitions. [2020-10-14 03:54:45,539 INFO L78 Accepts]: Start accepts. Automaton has 17753 states and 19704 transitions. Word has length 1066 [2020-10-14 03:54:45,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:54:45,540 INFO L479 AbstractCegarLoop]: Abstraction has 17753 states and 19704 transitions. [2020-10-14 03:54:45,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:54:45,540 INFO L276 IsEmpty]: Start isEmpty. Operand 17753 states and 19704 transitions. [2020-10-14 03:54:45,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1121 [2020-10-14 03:54:45,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:54:45,587 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:54:45,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:54:45,588 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:54:45,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:54:45,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1852406025, now seen corresponding path program 1 times [2020-10-14 03:54:45,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:54:45,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596053194] [2020-10-14 03:54:45,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:54:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:45,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:46,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:46,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:46,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:46,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:50,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:50,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1142 [2020-10-14 03:54:50,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:54:50,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 03:54:50,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:50,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:50,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:50,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 448 [2020-10-14 03:54:50,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:54:50,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:50,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:54:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:50,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:50,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:50,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:54:50,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:50,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:54:50,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:50,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:50,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:50,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:50,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:50,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:54:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:50,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:51,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:51,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:54:51,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:51,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:54:51,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:51,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:51,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:51,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:54:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:51,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:51,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:51,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:54:51,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:51,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:54:51,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:51,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:51,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:51,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:54:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:51,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:51,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:51,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:54:51,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:51,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 03:54:51,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:51,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:51,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:54:51,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:51,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:54:51,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:54:51,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:54:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:51,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:51,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:51,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:54:51,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:51,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-14 03:54:51,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:51,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:51,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:51,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:54:51,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:54:51,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:51,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 692 [2020-10-14 03:54:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:51,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:51,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:51,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:54:51,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:51,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:54:51,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:51,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:51,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:51,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:54:51,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:51,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:51,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 802 [2020-10-14 03:54:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:52,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:52,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:52,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:54:52,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:52,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 03:54:52,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:52,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:52,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:52,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:54:52,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:52,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:52,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:54:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:52,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:52,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:52,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:54:52,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:52,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:54:52,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:52,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:52,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:52,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:52,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:52,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:53,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2027 backedges. 603 proven. 356 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2020-10-14 03:54:53,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596053194] [2020-10-14 03:54:53,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:54:53,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:54:53,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426537759] [2020-10-14 03:54:53,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:54:53,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:54:53,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:54:53,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:54:53,324 INFO L87 Difference]: Start difference. First operand 17753 states and 19704 transitions. Second operand 7 states. [2020-10-14 03:54:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:54:57,201 INFO L93 Difference]: Finished difference Result 35718 states and 40606 transitions. [2020-10-14 03:54:57,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:54:57,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1120 [2020-10-14 03:54:57,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:54:57,271 INFO L225 Difference]: With dead ends: 35718 [2020-10-14 03:54:57,271 INFO L226 Difference]: Without dead ends: 18308 [2020-10-14 03:54:57,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:54:57,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18308 states. [2020-10-14 03:54:57,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18308 to 18100. [2020-10-14 03:54:57,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18100 states. [2020-10-14 03:54:57,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18100 states to 18100 states and 20083 transitions. [2020-10-14 03:54:57,852 INFO L78 Accepts]: Start accepts. Automaton has 18100 states and 20083 transitions. Word has length 1120 [2020-10-14 03:54:57,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:54:57,853 INFO L479 AbstractCegarLoop]: Abstraction has 18100 states and 20083 transitions. [2020-10-14 03:54:57,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:54:57,853 INFO L276 IsEmpty]: Start isEmpty. Operand 18100 states and 20083 transitions. [2020-10-14 03:54:57,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2020-10-14 03:54:57,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:54:57,895 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:54:57,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:54:57,895 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:54:57,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:54:57,896 INFO L82 PathProgramCache]: Analyzing trace with hash -493821450, now seen corresponding path program 1 times [2020-10-14 03:54:57,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:54:57,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094535814] [2020-10-14 03:54:57,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:54:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:58,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:58,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:58,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:58,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:03,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:03,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1221 [2020-10-14 03:55:03,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:55:03,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 03:55:03,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:03,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:03,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:55:03,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:55:03,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:55:03,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:03,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:55:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:03,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:03,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:03,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:55:03,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:03,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:55:03,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:03,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:03,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:03,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:03,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:03,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:03,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:55:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:03,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:03,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:03,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:55:03,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:03,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:55:03,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:03,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:03,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:03,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:03,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:55:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:03,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:03,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:03,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:55:03,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:03,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:55:03,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:03,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:03,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:55:03,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:03,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:55:03,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:03,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:55:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:03,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:03,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:03,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:55:03,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:03,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:55:03,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:03,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:03,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:55:03,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:55:03,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:55:03,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:03,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:55:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:03,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:03,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:03,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:55:03,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:03,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 03:55:03,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:03,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:03,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:03,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:55:03,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:03,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:03,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:55:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:03,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:03,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:03,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:55:03,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:03,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 03:55:03,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:03,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:03,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:03,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:03,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:03,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:03,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-14 03:55:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:03,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:03,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:03,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:55:03,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:03,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:55:03,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:03,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:03,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:03,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:55:03,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:03,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:03,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 879 [2020-10-14 03:55:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:03,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:03,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:03,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:55:03,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:03,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 03:55:03,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:03,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:55:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:03,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:03,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:55:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:03,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:03,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:03,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:55:03,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:03,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:55:03,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:03,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:03,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:04,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2072 backedges. 352 proven. 333 refuted. 0 times theorem prover too weak. 1387 trivial. 0 not checked. [2020-10-14 03:55:04,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094535814] [2020-10-14 03:55:04,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:55:04,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:55:04,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81406536] [2020-10-14 03:55:04,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:55:04,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:55:04,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:55:04,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:55:04,650 INFO L87 Difference]: Start difference. First operand 18100 states and 20083 transitions. Second operand 7 states. [2020-10-14 03:55:10,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:55:10,047 INFO L93 Difference]: Finished difference Result 40873 states and 46569 transitions. [2020-10-14 03:55:10,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:55:10,048 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1197 [2020-10-14 03:55:10,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:55:10,131 INFO L225 Difference]: With dead ends: 40873 [2020-10-14 03:55:10,132 INFO L226 Difference]: Without dead ends: 23116 [2020-10-14 03:55:10,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:55:10,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23116 states. [2020-10-14 03:55:10,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23116 to 22519. [2020-10-14 03:55:10,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22519 states. [2020-10-14 03:55:10,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22519 states to 22519 states and 24779 transitions. [2020-10-14 03:55:10,589 INFO L78 Accepts]: Start accepts. Automaton has 22519 states and 24779 transitions. Word has length 1197 [2020-10-14 03:55:10,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:55:10,590 INFO L479 AbstractCegarLoop]: Abstraction has 22519 states and 24779 transitions. [2020-10-14 03:55:10,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:55:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 22519 states and 24779 transitions. [2020-10-14 03:55:10,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1223 [2020-10-14 03:55:10,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:55:10,628 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:55:10,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:55:10,629 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:55:10,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:55:10,630 INFO L82 PathProgramCache]: Analyzing trace with hash -2072088449, now seen corresponding path program 1 times [2020-10-14 03:55:10,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:55:10,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990899991] [2020-10-14 03:55:10,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:55:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:10,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:10,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:11,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:11,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:14,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:15,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:15,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1246 [2020-10-14 03:55:15,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:55:15,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-14 03:55:15,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:15,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:15,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:55:15,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:55:15,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:55:15,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:15,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:55:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:15,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:15,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:15,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:55:15,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:15,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:55:15,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:15,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:15,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:15,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:15,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:15,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:15,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:55:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:15,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:15,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:15,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:55:15,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:15,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:55:15,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:15,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:15,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:15,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:16,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:55:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:16,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:16,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:16,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:55:16,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:16,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:55:16,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:16,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:16,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:55:16,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:16,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:55:16,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:16,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:55:16,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:16,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:16,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:16,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:55:16,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:16,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 03:55:16,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:16,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:55:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:55:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:55:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:16,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2020-10-14 03:55:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:16,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:16,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:16,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:55:16,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:16,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 03:55:16,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:16,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:16,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:16,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:55:16,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:16,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:16,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:55:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:16,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:16,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:16,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:55:16,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:16,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:55:16,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:16,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:16,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:16,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:16,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:16,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:55:16,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 03:55:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:16,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:16,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:16,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:55:16,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:16,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:55:16,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:16,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:16,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:16,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:55:16,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:16,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:16,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 904 [2020-10-14 03:55:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:16,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:16,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:16,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:55:16,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:16,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:55:16,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:16,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:16,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:16,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:55:16,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:16,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:16,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:55:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:16,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:16,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:16,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:55:16,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:16,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:55:16,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:16,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:16,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2197 backedges. 377 proven. 333 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2020-10-14 03:55:17,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990899991] [2020-10-14 03:55:17,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:55:17,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:55:17,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844872135] [2020-10-14 03:55:17,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:55:17,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:55:17,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:55:17,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:55:17,505 INFO L87 Difference]: Start difference. First operand 22519 states and 24779 transitions. Second operand 7 states. [2020-10-14 03:55:21,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:55:21,177 INFO L93 Difference]: Finished difference Result 45028 states and 49568 transitions. [2020-10-14 03:55:21,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:55:21,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1222 [2020-10-14 03:55:21,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:55:21,245 INFO L225 Difference]: With dead ends: 45028 [2020-10-14 03:55:21,246 INFO L226 Difference]: Without dead ends: 23203 [2020-10-14 03:55:21,279 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:55:21,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23203 states. [2020-10-14 03:55:21,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23203 to 22521. [2020-10-14 03:55:21,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22521 states. [2020-10-14 03:55:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22521 states to 22521 states and 24232 transitions. [2020-10-14 03:55:21,658 INFO L78 Accepts]: Start accepts. Automaton has 22521 states and 24232 transitions. Word has length 1222 [2020-10-14 03:55:21,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:55:21,658 INFO L479 AbstractCegarLoop]: Abstraction has 22521 states and 24232 transitions. [2020-10-14 03:55:21,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:55:21,658 INFO L276 IsEmpty]: Start isEmpty. Operand 22521 states and 24232 transitions. [2020-10-14 03:55:21,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1249 [2020-10-14 03:55:21,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:55:21,684 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-10-14 03:55:21,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:55:21,685 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:55:21,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:55:21,685 INFO L82 PathProgramCache]: Analyzing trace with hash 2022299295, now seen corresponding path program 1 times [2020-10-14 03:55:21,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:55:21,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436888091] [2020-10-14 03:55:21,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:55:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:21,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:22,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:22,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:22,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:22,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:25,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:26,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:26,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1268 [2020-10-14 03:55:26,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:55:26,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-14 03:55:26,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:26,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:55:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 594 [2020-10-14 03:55:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:55:26,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:27,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:55:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:27,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:27,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:27,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:55:27,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:27,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:55:27,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:27,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:27,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:27,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:27,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:27,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:27,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:55:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:27,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:27,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:27,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:55:27,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:27,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:55:27,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:27,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:27,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:27,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:27,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:55:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:27,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:27,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:27,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:55:27,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:27,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:55:27,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:27,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:27,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:27,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:27,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:27,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:27,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:55:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:27,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:27,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:27,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:55:27,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:27,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-14 03:55:27,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:27,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:27,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:55:27,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:27,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 03:55:27,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:27,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2020-10-14 03:55:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:27,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:27,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:27,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:55:27,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:27,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 03:55:27,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:27,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:27,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:55:27,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:55:27,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:55:27,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:27,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 861 [2020-10-14 03:55:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:27,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:27,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:27,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:55:27,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:27,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:55:27,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:27,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:27,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:27,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:55:27,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:27,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:27,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2020-10-14 03:55:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:27,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:28,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:28,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:55:28,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:28,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:55:28,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:28,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:28,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:55:28,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:28,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 749 proven. 360 refuted. 0 times theorem prover too weak. 1341 trivial. 0 not checked. [2020-10-14 03:55:29,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436888091] [2020-10-14 03:55:29,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:55:29,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:55:29,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473088570] [2020-10-14 03:55:29,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:55:29,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:55:29,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:55:29,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:55:29,083 INFO L87 Difference]: Start difference. First operand 22521 states and 24232 transitions. Second operand 8 states. [2020-10-14 03:55:34,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:55:34,248 INFO L93 Difference]: Finished difference Result 47050 states and 50838 transitions. [2020-10-14 03:55:34,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 03:55:34,249 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1248 [2020-10-14 03:55:34,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:55:34,313 INFO L225 Difference]: With dead ends: 47050 [2020-10-14 03:55:34,313 INFO L226 Difference]: Without dead ends: 25223 [2020-10-14 03:55:34,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:55:34,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25223 states. [2020-10-14 03:55:34,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25223 to 24206. [2020-10-14 03:55:34,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24206 states. [2020-10-14 03:55:34,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24206 states to 24206 states and 26177 transitions. [2020-10-14 03:55:34,744 INFO L78 Accepts]: Start accepts. Automaton has 24206 states and 26177 transitions. Word has length 1248 [2020-10-14 03:55:34,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:55:34,746 INFO L479 AbstractCegarLoop]: Abstraction has 24206 states and 26177 transitions. [2020-10-14 03:55:34,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:55:34,746 INFO L276 IsEmpty]: Start isEmpty. Operand 24206 states and 26177 transitions. [2020-10-14 03:55:34,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1295 [2020-10-14 03:55:34,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:55:34,782 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:55:34,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:55:34,782 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:55:34,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:55:34,783 INFO L82 PathProgramCache]: Analyzing trace with hash 203173875, now seen corresponding path program 1 times [2020-10-14 03:55:34,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:55:34,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255] [2020-10-14 03:55:34,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:55:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:34,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:35,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:35,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:36,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:39,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:39,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1316 [2020-10-14 03:55:39,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:55:39,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 03:55:39,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:39,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:55:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 622 [2020-10-14 03:55:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:55:39,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:40,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:55:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:40,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:40,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:40,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:55:40,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:40,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:55:40,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:40,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:40,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:40,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:55:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:40,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:40,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:40,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:55:40,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:40,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:55:40,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:40,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:40,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:40,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:40,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:40,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:40,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:55:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:40,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:40,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:40,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:55:40,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:40,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:55:40,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:40,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:40,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:40,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:40,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:40,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:40,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:55:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:40,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:40,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:40,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:55:40,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:40,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:55:40,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:40,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:40,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:55:40,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:40,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:55:40,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:40,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:55:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:40,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:40,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:40,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:55:40,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:40,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-14 03:55:40,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:40,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:55:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:55:40,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:55:40,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:40,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 866 [2020-10-14 03:55:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:40,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:40,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:40,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:55:40,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:40,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:55:40,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:40,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:40,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:55:40,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:40,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:41,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 976 [2020-10-14 03:55:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:41,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:41,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:41,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:55:41,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:41,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:55:41,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:41,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:55:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:41,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:41,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:55:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:41,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:41,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:41,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:55:41,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:41,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:55:41,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:41,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:41,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:41,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:41,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:41,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:42,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2522 backedges. 751 proven. 356 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2020-10-14 03:55:42,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255] [2020-10-14 03:55:42,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:55:42,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:55:42,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658550794] [2020-10-14 03:55:42,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:55:42,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:55:42,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:55:42,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:55:42,221 INFO L87 Difference]: Start difference. First operand 24206 states and 26177 transitions. Second operand 7 states. [2020-10-14 03:55:46,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:55:46,002 INFO L93 Difference]: Finished difference Result 47718 states and 51642 transitions. [2020-10-14 03:55:46,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:55:46,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1294 [2020-10-14 03:55:46,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:55:46,067 INFO L225 Difference]: With dead ends: 47718 [2020-10-14 03:55:46,067 INFO L226 Difference]: Without dead ends: 24206 [2020-10-14 03:55:46,098 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:55:46,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24206 states. [2020-10-14 03:55:46,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24206 to 23869. [2020-10-14 03:55:46,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23869 states. [2020-10-14 03:55:46,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23869 states to 23869 states and 25796 transitions. [2020-10-14 03:55:46,497 INFO L78 Accepts]: Start accepts. Automaton has 23869 states and 25796 transitions. Word has length 1294 [2020-10-14 03:55:46,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:55:46,498 INFO L479 AbstractCegarLoop]: Abstraction has 23869 states and 25796 transitions. [2020-10-14 03:55:46,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:55:46,498 INFO L276 IsEmpty]: Start isEmpty. Operand 23869 states and 25796 transitions. [2020-10-14 03:55:46,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1329 [2020-10-14 03:55:46,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:55:46,534 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:55:46,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:55:46,534 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:55:46,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:55:46,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1857342709, now seen corresponding path program 1 times [2020-10-14 03:55:46,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:55:46,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655390644] [2020-10-14 03:55:46,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:55:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:46,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:46,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:47,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:49,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:51,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:51,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1352 [2020-10-14 03:55:51,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:55:51,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5062 [2020-10-14 03:55:51,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:51,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:55:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:55:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 03:55:51,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:51,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:55:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:51,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:51,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:51,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:55:51,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:51,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:55:51,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:51,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:51,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:51,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:51,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:51,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:51,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:55:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:51,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:52,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:52,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:55:52,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:52,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 03:55:52,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:52,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:52,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:55:52,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:52,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:55:52,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:52,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:55:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:52,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:52,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:52,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:55:52,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:52,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 03:55:52,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:52,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:52,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:55:52,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:55:52,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 03:55:52,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:52,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2020-10-14 03:55:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:52,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:52,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:52,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:55:52,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:52,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:55:52,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:52,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:52,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:52,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:55:52,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:52,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:52,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 03:55:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:52,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:52,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:52,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:55:52,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:52,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 03:55:52,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:52,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:52,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:52,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:55:52,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:52,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:52,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:55:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:52,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:52,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:52,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:55:52,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:52,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:55:52,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:52,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:52,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:52,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:52,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 900 [2020-10-14 03:55:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:52,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:52,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:52,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:55:52,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:52,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:55:52,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:52,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:52,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:52,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:55:52,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:52,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:52,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1010 [2020-10-14 03:55:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:52,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:52,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:52,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:55:52,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:52,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 03:55:52,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:52,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:52,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:52,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:55:52,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:55:53,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:55:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:53,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:53,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:55:53,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:55:53,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:55:53,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:55:53,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:55:53,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:55:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:55:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:55:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:55:53,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:55:54,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 358 proven. 617 refuted. 0 times theorem prover too weak. 1575 trivial. 0 not checked. [2020-10-14 03:55:54,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655390644] [2020-10-14 03:55:54,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:55:54,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:55:54,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84118201] [2020-10-14 03:55:54,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:55:54,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:55:54,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:55:54,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:55:54,228 INFO L87 Difference]: Start difference. First operand 23869 states and 25796 transitions. Second operand 7 states. [2020-10-14 03:55:58,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:55:58,686 INFO L93 Difference]: Finished difference Result 47383 states and 51243 transitions. [2020-10-14 03:55:58,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:55:58,687 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1328 [2020-10-14 03:55:58,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:55:58,727 INFO L225 Difference]: With dead ends: 47383 [2020-10-14 03:55:58,727 INFO L226 Difference]: Without dead ends: 24208 [2020-10-14 03:55:58,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:55:58,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24208 states. [2020-10-14 03:55:59,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24208 to 23869. [2020-10-14 03:55:59,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23869 states. [2020-10-14 03:55:59,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23869 states to 23869 states and 25786 transitions. [2020-10-14 03:55:59,078 INFO L78 Accepts]: Start accepts. Automaton has 23869 states and 25786 transitions. Word has length 1328 [2020-10-14 03:55:59,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:55:59,079 INFO L479 AbstractCegarLoop]: Abstraction has 23869 states and 25786 transitions. [2020-10-14 03:55:59,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:55:59,079 INFO L276 IsEmpty]: Start isEmpty. Operand 23869 states and 25786 transitions. [2020-10-14 03:55:59,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1332 [2020-10-14 03:55:59,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:55:59,113 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:55:59,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:55:59,114 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:55:59,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:55:59,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1392454906, now seen corresponding path program 1 times [2020-10-14 03:55:59,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:55:59,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579800372] [2020-10-14 03:55:59,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:55:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:55:59,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:59,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:59,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:55:59,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:00,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:04,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:04,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1353 [2020-10-14 03:56:04,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:56:04,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 03:56:04,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:04,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:04,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:56:04,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:56:04,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:56:04,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:56:04,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:56:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:04,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:04,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:04,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:56:04,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:04,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:56:04,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:04,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:04,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:04,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:04,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:56:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:04,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:04,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:04,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:56:04,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:04,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:56:04,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:04,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:04,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:04,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:04,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:04,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:04,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:56:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:04,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:04,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:04,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:56:04,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:04,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:56:04,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:04,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:56:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:04,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:56:04,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:04,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:56:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:04,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:04,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:04,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:56:04,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:04,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-14 03:56:04,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:04,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:04,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:56:04,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:56:04,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:56:04,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:05,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2020-10-14 03:56:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:05,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:05,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:05,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:56:05,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:05,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:56:05,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:05,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:05,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:05,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:56:05,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:05,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:05,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 731 [2020-10-14 03:56:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:05,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:05,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:05,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:56:05,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:05,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:56:05,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:05,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:56:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:05,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:05,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-14 03:56:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:05,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:05,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:05,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:56:05,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:05,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 03:56:05,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:05,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:05,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:05,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 03:56:05,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:05,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:05,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1056 [2020-10-14 03:56:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:05,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:05,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:05,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:56:05,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:05,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:56:05,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:05,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:05,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:56:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:05,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:06,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3101 backedges. 518 proven. 709 refuted. 0 times theorem prover too weak. 1874 trivial. 0 not checked. [2020-10-14 03:56:06,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579800372] [2020-10-14 03:56:06,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:56:06,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:56:06,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473754283] [2020-10-14 03:56:06,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:56:06,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:56:06,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:56:06,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:56:06,798 INFO L87 Difference]: Start difference. First operand 23869 states and 25786 transitions. Second operand 7 states. [2020-10-14 03:56:11,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:56:11,130 INFO L93 Difference]: Finished difference Result 47661 states and 52453 transitions. [2020-10-14 03:56:11,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:56:11,131 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1331 [2020-10-14 03:56:11,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:56:11,206 INFO L225 Difference]: With dead ends: 47661 [2020-10-14 03:56:11,206 INFO L226 Difference]: Without dead ends: 24486 [2020-10-14 03:56:11,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:56:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24486 states. [2020-10-14 03:56:11,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24486 to 23867. [2020-10-14 03:56:11,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23867 states. [2020-10-14 03:56:11,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23867 states to 23867 states and 25740 transitions. [2020-10-14 03:56:11,760 INFO L78 Accepts]: Start accepts. Automaton has 23867 states and 25740 transitions. Word has length 1331 [2020-10-14 03:56:11,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:56:11,761 INFO L479 AbstractCegarLoop]: Abstraction has 23867 states and 25740 transitions. [2020-10-14 03:56:11,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:56:11,761 INFO L276 IsEmpty]: Start isEmpty. Operand 23867 states and 25740 transitions. [2020-10-14 03:56:11,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1372 [2020-10-14 03:56:11,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:56:11,817 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:56:11,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:56:11,818 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:56:11,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:56:11,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1962372486, now seen corresponding path program 1 times [2020-10-14 03:56:11,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:56:11,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220501803] [2020-10-14 03:56:11,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:56:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:12,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:12,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:12,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:13,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:17,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:17,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1395 [2020-10-14 03:56:17,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:56:17,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-14 03:56:17,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:17,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:56:17,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 622 [2020-10-14 03:56:17,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 329 [2020-10-14 03:56:17,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:17,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:56:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:17,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:17,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:17,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:56:17,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:17,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:56:17,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:17,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:17,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:17,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:17,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:56:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:17,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:17,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:17,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:56:17,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:17,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 03:56:17,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:17,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:17,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:17,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:17,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:17,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:56:17,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:56:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:17,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:17,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:17,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:56:17,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:17,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:56:17,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:17,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:17,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:17,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:17,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:17,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:17,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:56:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:17,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:17,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:17,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:56:17,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:17,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:56:17,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:17,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:56:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:17,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:56:17,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:17,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:56:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:17,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:18,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:18,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:56:18,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:18,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-10-14 03:56:18,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:18,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:18,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:56:18,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:56:18,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 330 [2020-10-14 03:56:18,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:18,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:56:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:18,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:18,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:18,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:56:18,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:18,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:56:18,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:18,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:18,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 03:56:18,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:56:18,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 03:56:18,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:18,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 943 [2020-10-14 03:56:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:18,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:18,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:18,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:56:18,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:18,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:56:18,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:18,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:18,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:18,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:56:18,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:18,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:18,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1053 [2020-10-14 03:56:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:18,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:18,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:18,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:56:18,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:18,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 03:56:18,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:18,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:56:18,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:18,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:18,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:56:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:18,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:18,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:18,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:56:18,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:18,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:56:18,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:18,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:18,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:18,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:18,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:18,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:19,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 777 proven. 400 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2020-10-14 03:56:19,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220501803] [2020-10-14 03:56:19,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:56:19,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:56:19,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334726365] [2020-10-14 03:56:19,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:56:19,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:56:19,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:56:19,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:56:19,648 INFO L87 Difference]: Start difference. First operand 23867 states and 25740 transitions. Second operand 7 states. [2020-10-14 03:56:25,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:56:25,681 INFO L93 Difference]: Finished difference Result 51090 states and 56236 transitions. [2020-10-14 03:56:25,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:56:25,682 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1371 [2020-10-14 03:56:25,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:56:25,737 INFO L225 Difference]: With dead ends: 51090 [2020-10-14 03:56:25,737 INFO L226 Difference]: Without dead ends: 27917 [2020-10-14 03:56:25,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:56:25,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27917 states. [2020-10-14 03:56:26,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27917 to 27264. [2020-10-14 03:56:26,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27264 states. [2020-10-14 03:56:26,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27264 states to 27264 states and 29328 transitions. [2020-10-14 03:56:26,215 INFO L78 Accepts]: Start accepts. Automaton has 27264 states and 29328 transitions. Word has length 1371 [2020-10-14 03:56:26,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:56:26,216 INFO L479 AbstractCegarLoop]: Abstraction has 27264 states and 29328 transitions. [2020-10-14 03:56:26,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:56:26,216 INFO L276 IsEmpty]: Start isEmpty. Operand 27264 states and 29328 transitions. [2020-10-14 03:56:26,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1405 [2020-10-14 03:56:26,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:56:26,264 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 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] [2020-10-14 03:56:26,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:56:26,265 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:56:26,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:56:26,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1787805339, now seen corresponding path program 1 times [2020-10-14 03:56:26,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:56:26,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847310429] [2020-10-14 03:56:26,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:56:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:26,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:26,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:27,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:31,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:31,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1426 [2020-10-14 03:56:31,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:56:31,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 03:56:31,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:31,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:31,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:56:31,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:56:31,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:56:31,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:31,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:56:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:31,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:31,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:31,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:56:31,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:31,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:56:31,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:31,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:31,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:31,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:31,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:31,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:56:31,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:56:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:31,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:31,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:31,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:56:31,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:31,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:56:31,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:31,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:31,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:31,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:31,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:31,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:31,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:56:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:31,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:32,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:32,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:56:32,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:32,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:56:32,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:32,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:32,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:32,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:32,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:32,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:32,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:56:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:32,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:32,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:32,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:56:32,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:32,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:56:32,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:32,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:32,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:32,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:32,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:32,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:32,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:56:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:32,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:32,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:32,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:56:32,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:32,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:56:32,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:32,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:56:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:56:32,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:32,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:56:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:32,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:56:32,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:56:32,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:56:32,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:56:32,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 03:56:32,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:56:32,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:56:32,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:56:32,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:56:32,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:56:32,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:56:32,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:56:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:56:32,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking...